EXHIBIT 4.3


                                PURCHASE WARRANT

NEITHER THIS WARRANT NOR THE SECURITIES  ISSUABLE UPON EXERCISE HEREOF HAVE BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES  ACT"),
AND SUCH SECURITIES MAY NOT BE OFFERED, SOLD, TRANSFERRED, PLEDGED, HYPOTHECATED
OR OTHERWISE  ASSIGNED  UNLESS SO REGISTERED OR AN EXEMPTION  FROM  REGISTRATION
UNDER THE  SECURITIES  ACT IS AVAILABLE.  THIS LEGEND SHALL BE ENDORSED UPON ANY
WARRANT ISSUED IN EXCHANGE FOR THIS WARRANT.

                                WARRANT AGREEMENT

                               FOR COMMON STOCK OF

                             AUTO DATA NETWORK, INC.

Warrant No. B-[__]                           Warrant to purchase an aggregate of

Date of Issuance: March 11, 2004             [__________] shares of Common Stock

      THIS CERTIFIES that, for value received,  [_________________________],  or
his/her/its  permitted  transferees,  successors or assigns  (collectively,  the
"Holder"),  is entitled to purchase  from AUTO DATA  NETWORK,  INC.,  a Delaware
corporation  (the  "Company"),  at any time,  and from time to time,  during the
exercise  period  referred to in Section 1 hereof,  [__________________________]
([____________])  fully  paid,  validly  issued and  nonassessable  shares  (the
"Warrant  Shares") of common  stock of the  Company,  par value $0.00l per share
(the  "Common  Stock"),  at the  exercise  price of Two  Dollars and Fifty Cents
($2.50) per share (the "Warrant Share Price"). Securities issuable upon exercise
of this  Warrant and the Warrant  Share Price  payable  therefor  are subject to
adjustment from time to time as hereinafter set forth. As used herein,  the term
"Warrant" shall include any warrant or warrants  hereafter issued in consequence
of the exercise of this Warrant Agreement in part or transfer of this Warrant in
whole or in  part.  Capitalized  terms  used  herein  and not  defined  have the
respective meanings given to them in that certain Securities Purchase Agreement,
dated the date  hereof,  by and  among the  Company,  the  Holder  and the other
parties named therein.

      The Company shall register this Warrant,  upon records to be maintained by
the Company for that purpose (the "Warrant Register"), in the name of the record
Holder hereof from time to time.  The Company may deem and treat the  registered
Holder of this  Warrant as the  absolute  owner  hereof  for the  purpose of any
exercise hereof or any  distribution to the Holder,  and for all other purposes,
and the Company shall not be affected by notice to the contrary.

      Subject to Section 4 of this Warrant and the applicable  provisions of the
Securities Purchase Agreement and applicable law, the Company shall register the
transfer of any portion of




this Warrant in the Warrant Register,  upon surrender of this Warrant,  with the
Form of Assignment  attached  hereto duly completed and signed,  to the Transfer
Agent (as  defined  herein) or to the  Company.  Upon any such  registration  or
transfer,  a new warrant to purchase Common Stock, in substantially  the form of
this Warrant (any such new warrant, a "New Warrant"),  evidencing the portion of
this Warrant so transferred  shall be issued to the transferee and a New Warrant
evidencing  the remaining  portion of this Warrant not so  transferred,  if any,
shall be issued to the transferring Holder. The acceptance of the New Warrant by
the transferee  thereof shall be deemed the acceptance by such transferee of all
of the  rights  and  obligations  of a holder  of a  Warrant.  Any  transfer  or
assignment of this Warrant and Warrant Shares obtained by the Holder in exercise
of this Warrant is subject to any applicable  restrictions  under the Securities
Purchase  Agreement,  if any,  and the  requirements  that  such  securities  be
registered  under the  Securities Act and applicable  state  securities  laws or
exempt from registration under such laws.

      1. Exercise; Payment for Ownership Interest.

            (a) Upon the terms and subject to the  conditions  set forth herein,
this Warrant may be  exercised  in whole or in part by the Holder  hereof at any
time,  or from time to time,  on or after the date  hereof  and on or prior to 5
p.m. New York local time on the earliest date to occur (the  "Expiration  Date")
of (x)  March  10,  2009  (the  "Expiration  Maturity  Date")  and (y) the Early
Expiration  Date, as such term is defined herein,  by presentation and surrender
of this Warrant to the principal offices of the Company, or at the office of its
Transfer  Agent, if any,  together with the Purchase Form annexed  hereto,  duly
executed,  and  accompanied  by payment to the Company of an amount equal to the
Warrant Share Price  multiplied by the number of Warrant Shares as to which this
Warrant is then being  exercised in U.S.  dollars by certified or official  bank
check or wire  transfer  of  immediately  available  funds of the cash  purchase
price;  provided,  however,  that in each case,  the  minimum  number of Warrant
Shares as to which this  Warrant is being  exercised  shall be the lesser of (i)
1,000 Warrant Shares or (ii) all Warrant Shares then held by the Holder on an as
exercised  basis;   provided,   further,  that  in  the  event  of  any  merger,
consolidation  or sale,  lease or  transfer of all or  substantially  all of the
assets of the Company,  prior to the Expiration  Date, the Holder shall have the
right to exercise this Warrant  commencing  at such time through the  Expiration
Date into the kind and  amount of  shares  of stock  and  other  securities  and
property  (including  cash)  receivable  by a holder of the  number of shares of
Common Stock into which this  Warrant  might have been  exercisable  immediately
prior thereto. Any transfer of Warrant Shares obtained by the Holder in exercise
of  this  Warrant  is  subject  to the  requirement  that  such  transfer  be in
compliance with the applicable  provisions of the Securities Purchase Agreement,
if any, and that such  securities be registered  under the  Securities  Act, and
applicable  state securities laws or exempt from  registration  under such laws.
The Holder of this Warrant  shall be deemed to be a  stockholder  of the Warrant
Shares as to which this Warrant is exercised in  accordance  herewith  effective
immediately  after the close of business  on the date on which the Holder  shall
have  delivered  to the Company  this  Warrant in proper form for  exercise  and
payment in U.S.  dollars by certified or official bank check or wire transfer of
immediately available funds of the cash purchase price for the number of Warrant
Shares as to which the  exercise is being made,  notwithstanding  that the stock
transfer  books  of the  Company  shall  be then  closed  or  that  certificates
representing  such Warrant Shares shall not then be physically  delivered to the
Holder.  The  Company  shall not enter into any merger,  consolidation  or sale,
lease or  transfer  of all or  substantially  all of the  assets of the  Company
unless effective  provision shall be made so as to



                                      -2-



give effect to the provisions set forth in this subsection (a).

            (i) As used  herein,  "Early  Expiration  Date"  means the date upon
      which the average of the Market  Price (as defined  herein) for a share of
      Common  Stock for thirty  consecutive  Trading  Days (as  defined  herein)
      exceeds Four Hundred Percent (400%) of the  then-applicable  Warrant Share
      Price.  Notwithstanding  the foregoing,  there can be no "Early Expiration
      Date"  if the  Warrant  Shares  are not  either  covered  by an  effective
      registration statement under the Securities Act or an applicable exemption
      from registration under the Securities Act;

            (ii) As used  herein,  "Market  Price"  means,  with  respect to the
      shares of Common  Stock,  (i) if the  shares are  listed or  admitted  for
      trading on any  national  securities  exchange  or  included in The Nasdaq
      National Market or Nasdaq SmallCap  Market,  the last reported sales price
      as reported on such exchange or market;  (ii) if the shares are not listed
      or admitted for trading on any national securities exchange or included in
      The Nasdaq National Market or Nasdaq SmallCap  Market,  the average of the
      last reported  closing bid and asked  quotation for the shares as reported
      on the National  Association  of Securities  Dealers  Automated  Quotation
      System  ("NASDAQ") or a similar  service if NASDAQ is not  reporting  such
      information; or (iii) if the shares are not listed or admitted for trading
      on any  national  securities  exchange or included in The Nasdaq  National
      Market or Nasdaq SmallCap Market or quoted by NASDAQ or a similar service,
      the average of the last reported bid and asked quotation for the shares as
      quoted  by a market  maker  in the  shares  (or if there is more  than one
      market  maker,  the bid and asked  quotation  shall be  obtained  from two
      market  makers  and  the  average  of the  lowest  bid and  highest  asked
      quotation)  (such  applicable  trading  market  to be  referred  to as the
      "Trading  Market").  In the absence of any available public quotations for
      the Common Stock,  the Board shall  determine in good faith the fair value
      of  the  Common  Stock,  which  determination  shall  be  set  forth  in a
      certificate by the Secretary of the Company.

            (iii)  As  used  herein,  "Trading  Day"  means a day on  which  the
      principal  Trading Market with respect to the Common Stock is open for the
      transaction of business.

            (b) If this Warrant  shall be  exercised in part only,  the Company,
upon  surrender of this  Warrant for  cancellation,  shall  execute and deliver,
promptly (but in no event more than ten business days after such  surrender),  a
new Warrant  evidencing the rights of the Holder thereof to purchase the balance
of the Warrant Shares purchasable hereunder as to which the Warrant has not been
exercised.  If this Warrant is exercised in part,  such exercise  shall be for a
whole number of Warrant Shares. Upon any exercise and surrender of this Warrant,
the  Company  (i)  will  issue  and  deliver  to the  Holder  a  certificate  or
certificates  in the name of the Holder for the largest  whole number of Warrant
Shares to which the Holder  shall be entitled  and, if this Warrant is exercised
in whole, in lieu of any fractional  Warrant Share to which the Holder otherwise
might be entitled,  cash in an amount equal to the fair value of such fractional
Warrant Share  (determined in such reasonable and equitable  manner as the Board
of Directors of the Company (the "Board")  shall in good faith  determine),  and
(ii) will deliver  promptly  thereafter  (but in no event more than ten business
days thereafter) to the Holder such other securities,  properties and cash which
the Holder may be entitled to receive upon such exercise,  or the  proportionate
part



                                      -3-



thereof if this Warrant is exercised in part, pursuant to the provisions of this
Warrant.

            (c) If at any time after one year from the date of  issuance of this
Warrant there is no effective  Registration  Statement registering the resale of
the Warrant  Shares by the Holder,  this  Warrant may also be  exercised at such
time by means of a "cashless  exercise"  in which the Holder shall tender to the
Company  the  Warrant  for the  amount of  Warrant  Shares for which it is being
exercised,  along with the written  notice of exercise,  and the Holder shall be
entitled to receive a certificate  for the number of Warrant Shares equal to the
quotient obtained by dividing [(A-B) (X)] by (A), where:

            (A) = the Market Price on the Trading Day immediately  preceding the
                  date of such election;

            (B) = the Warrant Share Price of this Warrant, as adjusted; and

            (X) = the number of Warrant  Shares  issuable  upon exercise of this
                  Warrant in accordance with  the terms of this Warrant by means
                  of a cash exercise rather than a cashless exercise.

      2. Anti-Dilution Provisions. The Warrant Share Price in effect at any time
and the number and kind of  securities  issuable  upon  exercise of this Warrant
shall be subject to  adjustment  from time to time upon the happening of certain
events as follows:

            2.1 Adjustments.

            (a) Definition of Additional  Stock. The term "Additional  Shares of
Common  Stock"  includes all shares of Common Stock issued by the Company  after
the Date of Issuance, other than:

            (i) Shares of Common Stock  (subject to  appropriate  adjustment for
      any  stock   dividend,   stock  split,   combination   or  other   similar
      recapitalization   affecting  such  shares)  issuable  or  issued  to  the
      Company's  employees,  directors or consultants pursuant to a stock option
      plan or restricted stock plan or other  compensation  plan approved by the
      Board;

            (ii)  Shares  of  Common  Stock  issued  or  issuable   pursuant  to
      securities outstanding at the Date of Issuance or agreements to issue such
      securities  or  underlying  shares of Common  Stock which  agreements  are
      outstanding at the Date of Issuance;

            (iii)  Shares  of  Common  Stock  issued  or  issuable  pursuant  to
      subsection 2.1(b)(iv) below;

            (iv) Shares of Common  Stock  issuable  upon  exercise of options or
      warrants,  or upon  conversion of convertible  securities or other rights,
      outstanding as of the Date of Issuance; and

            (v) Shares of  capital  stock or options  or  warrants  to  purchase
      capital stock



                                      -4-



      issued to financial institutions or lessors in connections with commercial
      credit  agreements,  equipment  financings or similar  transactions  or to
      other  corporations,  persons or entities in connection with acquisitions,
      mergers  or  similar  business  combinations,   partnership  arrangements,
      strategic alliances, licensing arrangements or similar non-capital raising
      transactions approved by the Board, including within this exception shares
      issued to raise capital provided that the use of proceeds is to consummate
      such non-capital raising transactions.

      (b)  Dividend,  Subdivision,  Combination  or  Reclassification  of Common
Stock.  In the  event  that the  Company  shall at any time or from time to time
after the issuance of this Warrant but prior to the exercise hereof:

            (i) make a dividend or  distribution  on the  outstanding  shares of
Common Stock payable in capital stock;

            (ii) subdivide or reclassify or reorganize its outstanding shares of
Common Stock into a greater number of shares;

            (iii) combine or reclassify or reorganize its outstanding  shares of
Common Stock into a smaller number of shares; or

            (iv)  issue,  by  reclassification  of its  Common  Stock  or  other
reorganization, any Additional Shares of Common Stock;

then the number and kind of Warrant  Shares  purchasable  upon  exercise of this
Warrant  shall be  adjusted  so that the Holder upon  exercise  hereof  shall be
entitled to receive the kind and number of Warrant Shares or other securities of
the Company  that the Holder  would have owned or have been  entitled to receive
after the happening of any of the events  described  above had this Warrant been
exercised  immediately  prior to the  happening of such event or any record date
with respect  thereto.  Whenever the number of Warrant Shares  purchasable  upon
exercise  hereof is adjusted  as herein  provided,  the  Warrant  Price shall be
adjusted by multiplying the Warrant Price by a fraction,  the numerator of which
is equal to the  number  of  shares of  Common  Stock  purchasable  prior to the
adjustment  and the  denominator  of which is equal to the  number  of shares of
Common Stock  purchasable  after the adjustment.  An adjustment made pursuant to
this Section 2.1(b) shall become effective  immediately after the record date in
the case of a dividend or distribution  and shall become  effective  immediately
after the effective date in the case of a subdivision,  combination or issuance.
If, as a result of an  adjustment  made  pursuant to this  Section  2.1(b),  the
Holder of this Warrant thereafter surrendered for exercise shall become entitled
to receive  shares of two or more  classes of capital  stock or shares of Common
Stock and any other class of capital stock of the Company, the Board (whose good
faith  determination  shall be  applied  fairly and  ratably  to all  holders of
Warrants and shall be conclusive  and shall be described in a written  notice to
all holders of Warrants  promptly after such adjustment) shall determine in good
faith the  allocation  of the adjusted  Warrant Share Price between or among the
shares of such classes of capital stock or shares of Common Stock and such other
class of capital stock.



                                      -5-



      The  adjustment  to the  number of  Warrant  Shares  purchasable  upon the
exercise of this Warrant  described  in this  Section  2.1(b) shall be made each
time any event listed in  paragraphs  (i) through  (iv) of this  Section  2.1(b)
occurs.

      (c) Issuance of Common  Stock Below  Warrant  Share Price.  If the Company
shall  issue  any  Additional  Shares  of Common  Stock  after  the date  hereof
(excluding any such issuance for which an adjustment is made under the foregoing
subsection (b)), for no consideration or for a consideration per share less than
the Warrant Share Price in effect on the date of and  immediately  prior to such
issue,   then  in  such  event,  the  Warrant  Share  Price  shall  be  reduced,
concurrently  with such  issue,  to a price  equal to the  quotient  obtained by
dividing:

            (A) an  amount  equal to (x) the  total  number  of shares of Common
      Stock outstanding immediately prior to such issuance or sale multiplied by
      the Market  Price in effect  immediately  prior to such  issuance or sale,
      plus (y) the aggregate  consideration received or deemed to be received by
      the Company upon such issuance or sale, by

            (B)  the  total  number  of  shares  of  Common  Stock   outstanding
      immediately after such issuance or sale.

      (d)  Issuance of Options and  Convertible  Securities  Deemed  Issuance of
Additional  Shares of Common Stock. If the Company,  at any time or from time to
time after the Date of  Issuance,  shall  issue any  options,  warrants or other
rights to purchase Common Stock (collectively, "Options") or securities that, by
their terms,  directly or indirectly,  are convertible  into or exchangeable for
shares of Common Stock ("Convertible Securities") or shall fix a record date for
the determination of holders of any class of securities  entitled to receive any
such Options or  Convertible  Securities,  then the maximum  number of shares of
Common Stock (as set forth in the instrument  relating thereto without regard to
any  provision  contained  therein for a subsequent  adjustment  of such number)
issuable  upon the  exercise  of such  Options  or,  in the case of  Convertible
Securities and Options therefor,  the conversion or exchange of such Convertible
Securities, shall be deemed to be Additional Shares of Common Stock issued as of
the time of such issue or, in case such a record date shall have been fixed,  as
of the close of business on such record date,  provided that in any such case in
which Additional Shares of Common Stock are deemed to be issued pursuant to this
Section 2.1(d):

            (i) no further  adjustment  in the Warrant Share Price shall be made
      upon the subsequent  issue of  Convertible  Securities or shares of Common
      Stock upon the exercise of such Options or  conversion or exchange of such
      Convertible  Securities and, upon the expiration of any such Option or the
      termination  of any such  right to convert or  exchange  such  Convertible
      Securities,  the  Warrant  Share  Price  then in  effect  hereunder  shall
      forthwith be increased to the Warrant Share Price which would have been in
      effect at the time of such  expiration or  termination  had such Option or
      Convertible  Securities,  to the extent  outstanding  immediately prior to
      such  expiration or termination,  never been issued,  and the Common Stock
      issuable thereunder shall no longer be deemed to be outstanding;

            (ii) if such  Options  or  Convertible  Securities  by  their  terms
      provide, with the



                                      -6-



      passage  of  time or  otherwise,  for any  increase  in the  consideration
      payable  to the  Company,  or  decrease  in the number of shares of Common
      Stock issuable,  upon the exercise,  conversion or exchange  thereof,  the
      Warrant Share Price  computed upon the original issue thereof (or upon the
      occurrence  of a record date with  respect  thereto),  and any  subsequent
      adjustments  based  thereon,  shall,  upon any such  increase  or decrease
      becoming  effective,  be  recomputed  to reflect such increase or decrease
      insofar as it affects such Options or the rights of conversion or exchange
      under such Convertible Securities,  provided that no readjustment pursuant
      to this clause (ii) shall have the effect of increasing  the Warrant Share
      Price to an amount which  exceeds the lower of (A) the Warrant Share Price
      on the original adjustment date, or (B) the Warrant Share Price that would
      have  resulted  from any  issuance of  Additional  Shares of Common  Stock
      between the original adjustment date and such readjustment date;

            (iii) if such  Options  or  Convertible  Securities  by their  terms
      provide,  with the passage of time or  otherwise,  for any decrease in the
      consideration  payable to the Company, or increase in the number of shares
      of Common  Stock  issuable,  upon the  exercise,  conversion  or  exchange
      thereof,  the Warrant Share Price computed upon the original issue thereof
      (or upon the  occurrence of a record date with respect  thereto),  and any
      subsequent  adjustments  based thereon,  shall,  upon any such decrease or
      increase  becoming  effective,  be  recomputed to reflect such decrease or
      increase insofar as it affects such Options or the rights of conversion or
      exchange under such Convertible Securities,  provided that no readjustment
      pursuant to this  clause  (iii)  shall have the effect of  decreasing  the
      Warrant  Share  Price to an  amount  which  exceeds  the  lower of (A) the
      Warrant  Share Price on the original  adjustment  date, or (B) the Warrant
      Share  Price that would have  resulted  from any  issuance  of  Additional
      Shares of Common  Stock  between  the  original  adjustment  date and such
      readjustment date; and

            (iv) if such Options or  Convertible  Securities  cover shares which
      are excluded from the  definition of Additional  Shares of Common Stock by
      Section  2.1(a),  then  this  Section  2.1(d)  shall  not  apply  to those
      underlying shares.

            (iv) Determination of Consideration. For purposes of this Subsection
      2.1(d),  the  consideration  received  by the Company for the issue of any
      Additional Shares of Common Stock shall be computed as follows:

                 (A) Cash and Property: Such consideration shall:

                        (1)   insofar as it consists of cash, be computed at the
                              aggregate   of  cash   received  by  the  Company,
                              excluding  amounts  paid or  payable  for  accrued
                              interest or accrued dividends;

                        (2)   insofar  as it  consists  of  property  other than
                              cash, be computed at the fair market value thereof
                              at the time of such issue,  as  determined in good
                              faith by the Board; and



                                      -7-



in the event  Additional  Shares of Common Stock are issued  together with other
shares or  securities  or other  assets of the Company for  consideration  which
covers both, be the proportion of such  consideration  so received,  computed as
provided in clauses (1) and (2) above, as determined in good faith by the Board.

                  (B) Options and Convertible Securities.  The consideration per
      share received by the Company for Additional Shares of Common Stock deemed
      to have been issued pursuant to Subsection 2.1(d)(ii), relating to Options
      and Convertible Securities, shall be determined by dividing

                        (1)   the total amount,  if any,  received or receivable
                              by the Company as  consideration  for the issue of
                              such Options or Convertible  Securities,  plus the
                              minimum    aggregate    amount    of    additional
                              consideration  (as set  forth  in the  instruments
                              relating thereto,  without regard to any provision
                              contained  therein for a subsequent  adjustment of
                              such  consideration)  payable to the Company  upon
                              the exercise of such Options or the  conversion or
                              exchange of such Convertible Securities, or in the
                              case of Options for  Convertible  Securities,  the
                              exercise   of   such   Options   for   Convertible
                              Securities  and the conversion or exchange of such
                              Convertible Securities, by

                        (2)   the maximum  number of shares of Common  Stock (as
                              set  forth in the  instruments  relating  thereto,
                              without regard to any provision  contained therein
                              for  a  subsequent   adjustment  of  such  number)
                              issuable  upon the exercise of such Options or the
                              conversion   or  exchange   of  such   Convertible
                              Securities.

      In the event that at any time, as a result of an adjustment  made pursuant
to this Section 2.1, the Holder of this Warrant thereafter shall become entitled
to receive any shares of the Company,  other than Common Stock,  thereafter  the
number of such other shares so receivable upon exercise of this Warrant shall be
subject  to  adjustment  from  time to time in a manner  and on terms as  nearly
equivalent as  practicable  to the  provisions  with respect to the Common Stock
contained herein.

      (e) Extraordinary Distributions.  In case the Company shall at any time or
from time to time,  after the  issuance of the Warrant but prior to the exercise
hereof,  distribute  to all  holders of its  Common  Stock  (including  any such
distribution  made in  connection  with a  consolidation  or merger in which the
Company is the continuing or surviving  corporation  and the Common Stock is not
changed or  exchanged)  cash,  evidences of  indebtedness,  securities  or other
property or assets  (excluding any such event for which adjustment is made under
Section  2) or  rights or  warrants  to  subscribe  for or  purchase  any of the
foregoing,  then,  and in each  such  case,  the  Holder  shall be  entitled  to
participate  in any such  distribution  based on the  number of shares of Common
Stock it would have been  entitled  to receive had the  Warrant  been  exercised



                                      -8-



immediately prior to the occurrence of such distribution,  as if the Holder were
the  owner of such  shares  of  Common  Stock at the time of such  distribution.
Notwithstanding  the  foregoing,  this  Section  2.1(e)  shall be of no force or
effect until and unless such time as the Company  shall grant a similar right to
holders of  warrants  issued  after the date  hereof,  at which time the Holders
shall be entitled to the same protection for extraordinary  dividends as granted
to such future holders of warrants, if any.

            2.2 Other Action Affecting  Warrant Shares. If the Company takes any
action affecting its shares of Common Stock after the date hereof, that would be
covered  by  Section  2.1 but for the  manner in which  such  action is taken or
structured,  which would in any way diminish the value of this Warrant, then the
Warrant  Share Price shall be adjusted in such manner as the Board shall in good
faith determine to be equitable under the circumstances.

            2.3 Notice of Adjustments. Upon the occurrence of each adjustment or
readjustment  of the Warrant Share Price pursuant to this Section 2, the Company
at its expense  will as promptly as  possible,  but in any event within ten (10)
business days,  compute such  adjustment or  readjustment in accordance with the
terms of this Warrant and prepare a certificate setting forth such adjustment or
readjustment,  including  a statement  of the  adjusted  Warrant  Share Price or
adjusted  number of shares of Common  Stock,  if any,  issuable upon exercise of
each Warrant,  describing in reasonable  detail the  transaction  giving rise to
such  adjustments  and showing in detail the facts upon which such adjustment or
readjustment  is based.  The Company will  forthwith  mail, by first class mail,
postage  prepaid,  a copy of each such certificate to the Holder of this Warrant
at the address of such Holder as shown on the books of the  Company,  and to its
Transfer Agent.

            2.4 Other Notices. If at any time:

            (a) the  Company  shall (i) offer for  subscription  pro rata to the
holders of shares of the Common  Stock any  additional  equity in the Company or
other rights; or (ii) pay a dividend in additional shares of the Common Stock or
distribute  securities  or other  property or assets to the holders of shares of
the Common Stock (including, without limitation, cash, evidences of indebtedness
and equity and debt securities);

            (b) there shall be any capital reorganization or reclassification or
consolidation  or merger of the Company with, or sale,  transfer or lease of all
or substantially all of its assets to, another entity; or

            (c)  there  shall  be  a  voluntary  or   involuntary   dissolution,
liquidation or winding up of the Company;

then,  in any one or more of said cases,  the Company shall give, by first class
mail,  postage  prepaid,  to the Holder of this  Warrant at the  address of such
Holder as shown on the books of the Company, (x) at least 10 days' prior written
notice  of the date on which the books of the  Company  shall  close or a record
shall be taken for such subscription rights, dividend, distribution or issuance;
provided that such ten (10) day period shall be increased to thirty (30) days in
the case of Section 2.4(a)(ii),  and (y) in the case of any such reorganization,
reclassification,



                                      -9-



consolidation, merger, sale, dissolution, liquidation or winding up, at least 10
days'  prior  written  notice of the date when the same  shall  take place if no
stockholder  vote is required and at least 10 days' prior written  notice of the
record date for stockholders  entitled to vote upon such matter if a stockholder
vote is required.  Such notice in accordance with the foregoing clause (x) shall
also specify, in the case of any such subscription rights, the date on which the
holders of shares of Common  Stock shall be entitled  to exercise  their  rights
with respect  thereto,  and such notice in accordance with the foregoing  clause
(y) shall also  specify the date on which the holders of shares of Common  Stock
shall be entitled to exchange  their  shares of Common Stock for  securities  or
other  property   deliverable   upon  such   reorganization,   reclassification,
consolidation, merger, sale, dissolution, liquidation or winding up, as the case
may be.

            2.5  Adjustment  Calculations.  No  adjustment  in the Warrant Share
Price shall be  required  unless such  adjustment  would  require an increase or
decrease of at least one cent ($0.01) in such price; provided, however, that any
adjustments  which by reason of this  Section  2.5 are not  required  to be made
shall be carried  forward and taken into  account in any  subsequent  adjustment
required to be made hereunder.  All  calculations  under this Section 2 shall be
made to the nearest cent or to the nearest one-hundredth of a share, as the case
may be.

            2.6 Appraisal.  If a majority in interest of the Holders  reasonably
disagrees with any of the Board's  determinations  referred to in this Section 2
(each, a "Determination"), and such majority of Holders shall notify the Company
of its  disagreement by furnishing to the Company a written notice setting forth
in reasonable detail the fact of such dispute,  the basis for such dispute,  and
such Holders'  alternative  calculation  (such notice, a "Determination  Dispute
Notice"),  and such  Determination  Dispute  Notice is  received  by the Company
within seven (7) days of the Company having given notice of the Determination to
the  Holders,  then the Company and a majority in interest of such  Holders (the
"Warrant Representative") shall resolve such Determination Dispute in accordance
with the terms and  provisions  of this Section 2.6. The Holders agree that this
Section 2.6 sets forth the exclusive  mechanism for the Holders to make any such
dispute  and to resolve  the same,  and shall not be  entitled  to make any such
dispute in any other manner.  The Company and the Warrant  Representative  shall
use good  faith  efforts to  mutually  agree  upon the  designation  of a single
Qualified  Appraiser  (as defined  below)  within seven (7) business days of the
receipt by the Company of a valid  Determination  Dispute Notice received by the
Company in within the time period set forth above in this Section 2.6. If such a
single   Qualified   Appraiser   is   designated,   that  person  shall  make  a
Determination.  If the Company and the  Warrant  Representative  do not so agree
upon the designation of a single Qualified  Appraiser  within such period,  then
within five (5) business  days  following  the end of such  period,  each of the
Company  and the  Warrant  Representative  by written  notice to the other shall
designate a Qualified  Appraiser (or if any party fails to so select a Qualified
Appraiser  within the time period  specified,  the Person  selected by the other
party shall be the  Qualified  Appraiser)  and the two  Qualified  Appraisers so
designated  shall within ten (10)  business  days of their  designation  jointly
designate a third Qualified  Appraiser,  and such third  Qualified  Appraiser so
designated,  solely,  shall independently make a Determination.  The parties may
submit the basis for their respective views to the Appraiser in writing. In such
event,  each party shall  furnish its  submission to the other party at the same
time as the  submission is furnished to the Qualified  Appraiser,  and the other
party shall have two (2) business days within which to furnish a single rebuttal
to such original submission. The Qualified Appraiser may consider such



                                      -10-



submissions in reaching the  Determination.  If there is only a single Qualified
Appraiser,  the fees  and  expenses  of the  Qualified  Appraiser  shall be paid
equally  by the  Company  and the  Warrant  Representative.  If three  Qualified
Appraisers  are  appointed,  the Company  shall pay the fees and expenses of the
Qualified Appraiser which it appoints,  the Warrant Representative shall pay the
fees and expenses of the Qualified Appraiser which it appoints, and the fees and
expenses of the third Qualified Appraiser shall be shared equally by the Company
and the Warrant  Representative.  The designated  Qualified Appraiser shall make
the   Determination  not  later  than  ten  (10)  business  days  following  the
appointment  of  the  Qualified   Appraiser   making  the   Determination.   The
Determination  made  by the  applicable  Qualified  Appraiser  shall  be  final,
conclusive and binding on the parties hereto.  None of the Qualified  Appraisers
shall be  affiliated  with any of the  Company,  the Warrant  Representative  or
another  Qualified  Appraiser.  For the purposes of this  Agreement,  "Qualified
Appraiser"  shall mean an individual who is engaged on a regular basis (although
not necessarily full time) in valuing securities or arrangements similar to this
Agreement,  as the case may be, and may  include  (but shall not be limited  to)
professional business appraisers, investment bankers or accountants.

      3. No Voting Rights as Stockholders  or  Liabilities.  Except as otherwise
provided herein,  this Warrant shall not be deemed to confer upon the Holder any
right  to vote or to  consent  to or  receive  notice  as a  stockholder  of the
Company, as such, in respect of any matters  whatsoever,  or any other rights or
liabilities as a stockholder, prior to the exercise hereof. Nothing contained in
this  Warrant  shall be deemed as  imposing  any  liabilities  on the  Holder to
purchase any securities  whether such liabilities are asserted by the Company or
by creditors or stockholders of the Company or otherwise.

      4. Warrants  Transferable.  Subject to the terms hereof,  this Warrant and
all rights  hereunder are  transferable,  subject to the applicable terms of the
Securities Purchase Agreement,  if any, and applicable law, in whole or in part,
upon  surrender of this Warrant with a properly  executed  Form of Assignment at
the principal offices of the Company.  This Warrant and the underlying shares of
Common Stock may not be offered,  sold or transferred  except in compliance with
the  applicable  terms of the  Securities  Purchase  Agreement,  if any, and the
Securities  Act,  and any  applicable  state  securities  laws,  or an exception
therefrom,  and then only against  receipt of an agreement of the person to whom
such offer or sale or  transfer is made to comply  with the  provisions  of this
Warrant  with  respect to any resale or other  disposition  of such  securities;
provided that no such  agreement  shall be required  from any person  purchasing
this Warrant or the underlying shares of Common Stock pursuant to a registration
statement  effective under the Securities Act. No such  disposition  shall occur
without an opinion of such Holder's  counsel,  which opinion shall be reasonably
satisfactory to the Company's counsel.

      5. Warrants Exchangeable;  Assignment; Loss, Theft, Destruction, Etc. This
Warrant is exchangeable,  without  expense,  upon surrender hereof by the Holder
hereof at the principal offices of the Company, or at the office of its Transfer
Agent, if any, for new Warrants of like tenor  representing in the aggregate the
right to subscribe  for and purchase the Warrant  Shares which may be subscribed
for and  purchased  hereunder,  each such new Warrant to represent  the right to
subscribe  for and purchase  such Warrant  Shares as shall be designated by such
Holder hereof at the time of such  surrender.  Upon surrender of this Warrant to
the Company at its principal  office, or at the office of its Transfer Agent, if
any, with an instrument of assignment



                                      -11-



duly executed and funds  sufficient to pay any transfer tax, the Company  shall,
without  charge,  execute and deliver a new Warrant in the name of the  assignee
named in such  instrument  of  assignment  and this  Warrant  shall  promptly be
cancelled.  This Warrant may be divided or combined  with other  warrants  which
carry the same rights upon  presentation  hereof at the principal  office of the
Company, or at the office of its Transfer Agent, if any, together with a written
notice  specifying the names and  denominations  in which new Warrants are to be
issued  and signed by the  Holder  hereof.  The term  "Warrant"  as used  herein
includes any Warrants into which this Warrant may be divided or exchanged.  Upon
receipt of evidence  reasonably  satisfactory to the Company of the loss, theft,
destruction  or  mutilation  of this  Warrant and, in the case of any such loss,
theft or destruction,  upon delivery of indemnity reasonably satisfactory to the
Company, or, in the case of any such mutilation,  upon surrender or cancellation
of this  Warrant,  the Company will issue to the Holder  hereof a new Warrant of
like tenor, in lieu of this Warrant, representing the right to subscribe for and
purchase the Warrant Shares which may be subscribed for and purchased hereunder.
Any such new Warrant  executed and  delivered  shall  constitute  an  additional
contractual  obligation  of the  Company,  whether or not this  Warrant so lost,
stolen, destroyed, or mutilated shall be at any time enforceable by anyone.

      6. Legends;  Investment  Representations.  Any certificate  evidencing the
securities  issued  upon  exercise  of  this  Warrant  shall  bear a  legend  in
substantially the following form:

      THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE  HAVE NOT BEEN REGISTERED
UNDER THE  SECURITIES  ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),  OR ANY
OTHER  SECURITIES   LAWS,  AND  SUCH  SECURITIES  MAY  NOT  BE  OFFERED,   SOLD,
TRANSFERRED, PLEDGED, HYPOTHECATED OR OTHERWISE ASSIGNED UNLESS SO REGISTERED OR
AN  EXEMPTION  FROM  REGISTRATION  UNDER  SAID  ACT  AND  ANY  OTHER  APPLICABLE
SECURITIES LAWS IS AVAILABLE.

      7. Modifications and Waivers.  The Holder of this Warrant acknowledges and
agrees that the terms of this Warrant may be amended, modified or waived only by
the written agreement between the Holder and the Company.

      8. Expenses.  The Company shall pay all expenses and other charges payable
in connection  with the  preparation,  issuance and delivery of this Warrant and
all substitute  Warrants.  The Holder shall pay all taxes in connection with any
sale, assignment or other transfer of this Warrant.

      9.  Books.  The  Company  shall  maintain,  at the office or agency of the
Company  maintained by the Company,  books for the  registration and transfer of
the Warrant.

      10.  Reservation of Warrant Shares.  The Company covenants and agrees that
it will at all times reserve and keep available,  free from  preemptive  rights,
out  of the  aggregate  of its  authorized  but  unissued  Common  Stock  or its
authorized and issued Common Stock held in its treasury,  solely for the purpose
of enabling it to satisfy any  obligation to issue Warrant  Shares upon exercise
of this Warrant,  the maximum number of shares of Common Stock which may then be
deliverable upon the exercise of this Warrant. The Company or, if appointed, the
transfer



                                      -12-



agent for the Common Stock (the "Transfer Agent"), and every subsequent transfer
agent for any shares of the Company's  capital stock  issuable upon the exercise
of any of the rights of purchase  aforesaid will be  irrevocably  authorized and
directed at all times to reserve  such number of  authorized  shares as shall be
required for such purpose.  The Company will keep a copy of this Warrant on file
with the Transfer Agent and with every subsequent  transfer agent for any shares
of the  Company's  capital  stock  issuable  upon the  exercise of the rights of
purchase  represented  by this  Warrant.  The Company will furnish such Transfer
Agent a copy of all notices of  adjustments  and  certificates  related  thereto
transmitted to the Holder pursuant to Section 2.5 hereof.  The Company covenants
that all Warrant  Shares which may be issued upon exercise of this Warrant will,
upon issue, be validly issued, fully paid and nonassessable,  not subject to any
preemptive rights, and free from all taxes, liens, security interests,  charges,
and other encumbrances with respect to the issuance thereof.

      11.  Registration.  The Warrant Shares are required to be registered under
the Securities Act, to the extent provided in that certain  Registration  Rights
Agreement  of even date  herewith,  by and between the Company and the Holder of
this Warrant.

      12. Listing on Securities Exchanges; Registration. If, and so long as, any
class of the Company's  Common Stock shall be listed on any national  securities
exchange (as defined in the Exchange  Act) or NASDAQ,  the Company shall use its
reasonable best efforts to, at its expense, obtain and maintain the approval for
listing upon official  notice of issuance of all Warrant Shares and maintain the
listing of Warrant Shares after their issuance;  and the Company will so list on
such national securities exchange or NASDAQ, if applicable,  will register under
the Exchange Act (or any similar statute then in effect), and will maintain such
listing of, any other  securities that at any time are issuable upon exercise of
this Warrant if and at the time any securities of the same class shall be listed
on such national securities exchange or NASDAQ by the Company.

      13. No Dilution or Impairment. The Company will not act for the purpose of
avoiding or seeking to avoid the  observance or  performance of any of the terms
of this Warrant, by amendment of its certificate or articles of incorporation or
other  organizational  documents  or through  any  reorganization,  transfer  of
assets, consolidation,  merger, dissolution,  issue or sale of securities or any
other action, but will, at all times, in good faith,  assist in the carrying out
of all such terms. Without limiting the generality of the foregoing, the Company
will not  increase  the par  value of any  shares  of  stock  receivable  on the
exercise of this Warrant above the amount payable therefor on such exercise.

      14. Miscellaneous.

            14.1 Notices.  All notices and other  communications shall be mailed
by first-class  certified or registered mail, postage prepaid, sent by reputable
overnight delivery, delivered by hand or sent by facsimile as follows:



                                      -13-



                           If to the Company:

                           Auto Data Network, Inc.
                           712 Fifth Avenue, 19th Floor
                           New York, New York  10019
                           Attention:  Chief Executive Officer
                           Telephone:  (212) 561 1837

                  If to the Holder: The address  and/or  facsimile  furnished to
                                    the   Company   in   writing   by  the  last
                                    registered  Holder of this Warrant who shall
                                    have furnished an address  and/or  facsimile
                                    to the Company in writing.

except that any of the foregoing may from time to time by written  notice to the
other  designate  another  address  which shall  thereupon  become its effective
address for the purposes of this  paragraph.  Any notices,  requests or consents
hereunder shall be deemed given, and any instruments delivered,  five days after
they have been mailed by  first-class  certified  or  registered  mail,  postage
prepaid,  or upon receipt if delivered  by a reputable  overnight  courier or if
delivered personally or by facsimile transmission.

            14.2 Entire  Agreement.  This  Warrant,  including  the exhibits and
documents  referred  to  herein  which are a part  hereof,  contain  the  entire
understanding  of the parties  hereto with respect to the subject matter and may
be amended only by a written instrument  executed by the parties hereto or their
successors or assigns.  Any paragraph  headings  contained in this Agreement are
for  reference  purposes  only and shall not  affect in any way the  meaning  or
interpretation of this Warrant.

            14.3  Governing Law. This Warrant shall be governed by and construed
in  accordance  with the laws of the State of New York with respect to contracts
made and to be fully performed therein,  without regard to the conflicts of laws
principles thereof.  The parties hereto hereby agree that any suit or proceeding
arising  under this  Warrant,  or in  connection  with the  consummation  of the
transactions  contemplated hereby, shall be brought solely in a federal or state
court  located in the County of New York and State of New York. By its execution
hereof,  both the Company and the  undersigned  hereby  consent and  irrevocably
submit to the in personam  jurisdiction  of the federal and state courts located
in the  County of New York and State of New York and agree  that any  process in
any suit or proceeding commenced in such courts under this Warrant may be served
upon it personally or by certified or registered mail, return receipt requested,
or by Federal Express or other courier  service,  with the same force and effect
as if personally served upon the applicable party in New York and in the city or
county in which such other court is located.  The parties  hereto each waive any
claim that any such  jurisdiction is not a convenient forum for any such suit or
proceeding  and any defense of lack of in  personam  jurisdiction  with  respect
thereto.

            14.4  Headings.  The  headings of this  Warrant are for  purposes of
reference  only and shall not  limit or  otherwise  affect  the  meaning  of any
provision of this Warrant.



                                      -14-



            IN WITNESS WHEREOF,  this Warrant  Agreement has been executed as of
the date first written above.


                                                 AUTO DATA NETWORK, INC.


                                                 By:
                                                     ---------------------------
                                                     Name:
                                                     Title:









                                      -15-



                                  PURCHASE FORM



Dated: __________

      The undersigned  hereby  irrevocably elects to exercise the within Warrant
to the extent of  purchasing  _____  Warrant  Shares and hereby  makes full cash
payment of $_____________ in payment of the exercise price thereof.

      The  undersigned  has had the  opportunity to ask questions of and receive
answers  from the officers of the Company  regarding  the affairs of the Company
and  related  matters,   and  has  had  the  opportunity  to  obtain  additional
information necessary to verify the accuracy of all information so obtained.

      [The  undersigned  understands  that the shares  have not been  registered
under the  Securities  Act of 1933, as amended,  or the  securities  laws of any
other jurisdiction, and hereby represents to the Company that the undersigned is
acquiring the shares for its own account,  for  investment,  and not with a view
to, or for sale in connection  with, the distribution of any such shares.] [THIS
MAY NOT APPLY DEPENDING UPON WHETHER A REGISTRATION STATEMENT IS EFFECTIVE.]


                                              -------------------------------
                                                   (Signature)



                                              -------------------------------
                                                   (Print or type name)



                                              -------------------------------
                                                   (Address)



      NOTICE:  The signature of this Purchase Form must correspond with the name
as written upon the face of the within Warrant,  or upon the assignment thereof,
if  applicable,  in every  particular,  without  alteration,  enlargement or any
change whatsoever.





                               FORM OF ASSIGNMENT


[To be completed and signed only upon transfer of Warrant)

      FOR VALUE RECEIVED,  the undersigned  hereby sells,  assigns and transfers
unto  ______________________  the right  represented  by the  within  Warrant to
purchase  ________ shares of Common Stock of  _____________  to which the within
Warrant  relates and appoints  _____________  attorney to transfer said right on
the  books  of  ___________________  with  full  power  of  substitution  in the
premises.

Dated: __________________   ___,  200__





(Signature  must  conform in all  respects to name of holder as specified on the
face of the Warrant)

                                          Address of Transferee:

                                          ---------------------------------

                                          ---------------------------------

                                          ---------------------------------


In the presence of:


- ---------------------------------



                               CONSENT OF ASSIGNEE


         I HEREBY  CONSENT  to abide by the terms and  conditions  of the within
Warrant.

Dated:
       ----------------------             ---------------------------------
                                          (Signature of Assignee)


                                          ---------------------------------
                                          (Print or type name)