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                                                                    EXHIBIT 1.6



                            LOCK-UP LETTER AGREEMENT


                                                                   May __, 1997

ARGENT SECURITIES, INC.
3340 Peachtree Road, N.E.
Suite 450
Atlanta, Georgia  30326

Gentlemen:

         I am the owner of ________ shares of Common Stock par value of $.01
per share (the "Common Stock") of Karts International Incorporation, a Nevada
corporation (the "Company").

         The Company intends to conduct an initial public offering of its
Common Stock ("IPO") which shall be underwritten by, among others, Argent
Securities, Inc. ("Argent") as expressed in a letter of intent between the
Company and Argent (the "Letter of Intent") dated January 29, 1997. The
undersigned recognizes the benefits which the Company will derive from the IPO.
For and in consideration of Argent entering into the Letter of Intent and its
willingness to conduct the IPO contemplated thereby on mutually acceptable
terms, I hereby agree to the following lock-up arrangement restricting the sale
of its Company Common Stock.

A.       THE LOCK-UP

         1. During the period commencing on the date hereof and ending on the
date which is 60 months from the closing of the IPO (such period herein
referred to as the "Lock-Up Period"), I will not sell, pledge, hypothecate,
grant an option for sale or otherwise dispose of, or transfer or grant any
rights with respect thereto in any manner (either privately or publicly
pursuant to Rule 144 of the General Rules and Regulations under the Securities
Act of 1933, as amended, or otherwise) any of the shares of Common Stock
(directly or indirectly owned or controlled by me on the date hereof) (the
"Securities"), without Argent's prior written consent; provided, however, that
Securities may be sold or otherwise transferred in a private transaction during
the Lock-Up Period so long as the acquiror of the Securities, by written
agreement with Argent entered into at the time of acquisition and delivered to
Argent prior to the consummation of such acquisition, agrees to be bound by the
terms of this Paragraph A.1. for the balance of the Lock-Up Period, and by the
terms of Paragraph A.2. below; and, provided further, that the Securities, or
any portion thereof, may be transferred (I) by any such transferee to a trust
for the benefit of, or as gifts to, either individually or collectively in any
number, such transferee, or his or her spouse and children, (a "Permitted
Transferee") and in such event the trustee of such trust or donor shall execute
this Lock-Up Letter Agreement and agree to be bound thereby; or (ii) by court
order or pursuant to the laws of descent and distribution.

         2. In the event I desire to sell any of the Securities at any time
during the term of the Lock-Up Period or within 12 months after termination of
the Lock-Up Period as described below, publicly under Rule 144 or otherwise, I
will sell such securities through Argent, so long as the price and terms of
execution offered by Argent are at least as favorable as may be obtained from
other brokerage firms.


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         3. Notwithstanding the provision of Paragraph 4 below, on __________,
1999, 2000, and 2001, _______ Shares shall be released from the restrictions
set forth in Paragraph A(i) and may be sold in accordance with the provisions
of Paragraph A(2) above, provided, however, that the price of the Shares must
be equal to or in excess of the price of the Shares sold in the IPO, except for
any sale made before the second anniversary of the Closing Date where the price
of the Shares must be equal to or in excess of $_____ per Share.

         4. The Securities shall be released from the restrictions set forth in
paragraph A(1) in the increments indicated below upon the Company's achievement
of three targets for applicable years as set forth in the following table and
the footnotes thereunder (the "Chart").


===================================================================================================
              RELEASE PERCENTAGE OF         EARNINGS PER SHARE OF                                 
                   SHARES (a)                     SHARES (b)              STOCK                   
   FYE      -----------------------        ----------------------        PRICE OF         ANNUAL  
  1/31      Current     Cumulative         Current     Cumulative        SHARES(c)        REVENUE 
  ----      -------    ------------        -------     ----------       ----------        ------- 
===================================================================================================
                                                                           
  1997         0              0               $               $              $               --
  1998         0              0               $               $              $               $
  1999                                        $               $              $               $
  2000                                        $               $              $               $
  2001                                        $               $              $               $
  2002                                        $               $              $               $
===================================================================================================



(a)      For the year in which the Company attains (i) the earnings per share
         (EPS) on a cumulative basis, (ii) the target stock price for Shares
         or (iii) Annual Revenue on a cumulative basis after ______, any
         Shares not previously released shall be released in addition to the
         Shares released for the applicable year. In addition, for any fiscal
         year in which the Company attains earnings per share, target stock
         price or cumulated Annual Revenue targets applicable to a subsequent
         fiscal year, any shares eligible for release in such subsequent
         fiscal year shall also be released. Regardless of whether the EPS
         target, Target Stock Price or Annual Revenue is achieved, all of the
         shares shall be released on _________.

(b)      Earnings per share is defined as net income per share of the Company
         as reported in its audited financial statements for the applicable
         fiscal year.

(c)      The stock price of shares shall be defined as the average of the
         closing bid sales price of the Common Stock of the last 20 trading
         days prior to the end of the fiscal year.


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         5.       Notwithstanding anything herein to the contrary, all of the 
Securities shall be released from the restrictions set forth in paragraph A(1), 
to the extent not previously released, on ________________.

B.       PROVISIONS APPLICABLE TO SHARES

         The Company and the undersigned hereby acknowledge and represent that:

                  (a) A copy of this Lock-up Agreement will be available from
the Company or its transfer agent upon request and without charge and a copy of
this Lock-Up Agreement may be filed with the Securities Commissions of various
states, including, without limitation, any state securities commission
requiring its availability.

                  (b) A typed legend will be placed on the reverse side of each
stock certificate representing the Common Stock covered by the Lock-up
Agreement which states that the sale or transfer of the shares evidenced by the
certificate is subject to certain restrictions pursuant to an agreement between
the shareholder (whether beneficial or of record) and Argent, which agreement
is on file with the Company and the Company's stock transfer agent from whom a
copy is available, upon request and without charge.

                  (c) The terms and conditions of this Lock-up Agreement can
only be modified (including premature termination thereof), upon the written
consent of Argent and the prior approval of any state securities commission
which requires such consent.

                  (d) Stop transfer instructions will be placed with the
transfer agent against all shares of the Company's Common Stock subject to the
restrictions contained in paragraph A(1) of this Lock-up Agreement.
Notwithstanding the foregoing, shares subject to this Lock-Up Agreement may be
transferred by the transfer agent when shares are accompanied by an opinion of
company counsel certifying that such transfer is a permitted transfer.

                  (e) This Lock-Up Letter Agreement shall terminate and be of
no force and effect if it, or any of Argent's rights and obligations hereunder,
are assigned to any third party by Argent.


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         If this agreement is acceptable to Argent, please sign the form of
acceptance below and deliver one of the counterparts hereof to me. This will
become a binding agreement between us upon execution by each of the parties
hereto.

                                       Very truly yours,


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


                                       ----------------------------------------
                                       (Number of Shares Beneficially Owned)


AGREED to and ACCEPTED
this ____ day of May, 1997.


ARGENT SECURITIES, INC.


By 
   -----------------------------
       Authorized Signature





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