LETTER AGREEMENT


This Letter Agreement entered into this 16th day of December, 1998 at 
Bangalore, between:

SUDARSHAN K.MAINI, an Indian citizen, having his address at Maini Sadan, 
Lavelle Road, Bangalore, acting for himself and

MAINI MATERIALS MOVEMENT PVT.LTD., a company incorporated and registered 
under the Companies Act, 1956 and having its registered office at 122 
Bommasandra Industrial Estate, Bangalore, and

MAINI PRECISION PRODUCTS PVT.LTD., a company incorporated and registered 
under the Companies Act, 1956 and having registered office at B-59 Peenya 
Industrial Estate, Bangalore,

HEREINAFTER COLLECTIVELY REFERRED TO AS "MAINI" (which expression shall 
unless be repugnant to the context or meaning thereof be deemed to include 
their successors in interest and permitted assigns) of THE FIRST PART.

                                      AND


Amerigon Incorporated, a company incorporated under the laws of the United 
States of America, having is principal place of business at 5462, Irwindale 
Avenue, California, 91706, U.S.A., HEREINAFTER REFERRED TO AS "AMERIGON", 
(which expression shall unless it be repugnant to the context or meaning 
thereof, be deemed to include its successors in interest and permitted 
assigns) of THE SECOND PART.

This letter sets forth our agreement with respect to the formation,
capitalization and operation of a proposed joint venture company ("NEWCO") which
will design,


                                       1



manufacture, test, distribute, sell, and service ROAD WORTHY (as defined 
below) electric powered vehicles (collectively, the "PRODUCTS") in India, Sri 
Lanka, Bangladesh, Pakistan, Nepal, Myanmar, Seychelles and the Maldives 
(collectively, the "TERRITORY") utilizing technology owned by Amerigon 
Incorporated ("AMERIGON").  ROAD WORTHY vehicles shall mean cars, vans, 
trucks, busses, 3-wheel and 2-wheel electric vehicles for on-road use, but 
excluding industrial, construction, agricultural, golf and other non-road 
vehicle types.

Our understanding includes the following terms and conditions to be 
incorporated in DEFINITIVE AGREEMENTS:

1.   BACKGROUND.


               (a)  Amerigon has developed, designed and tested preproduction
     prototypes of an electric powered automobile known as the "REVA" (the
     "REVA") and has manufactured REVA vehicles is small quantities.  Amerigon
     owns a variety of technology relevant to the design and manufacturing of
     electric automobiles, including a patented energy management system. 
     Amerigon owns certain tooling for pre-production of the REVA and has
     considerable production know-how.  Amerigon will license its technology and
     know-how for Road Worthy electric vehicles to Newco which will include: 
     (1) exclusive rights to manufacture and sell the REVA in the Territory, (2)
     exclusive license to all of Amerigon's patents related to its Energy
     Management System, Climate Control Seat System and Electric Vehicle Safety
     Systems for all electric vehicles manufactured in the Territory and (3)
     exclusive license to all of


                                      2



     Amerigon's current and future electric vehicle technology in connection
     with the manufacture and sale of electric vehicles in the Territory.

               (b)  Sudarshan K. Maini, acting for himself, Maini Materials
     Movement (an Indian corporation) and Maini Precision Products, Pvt. Ltd.
     (collectively "Maini") manufactures and assembles precision automotive
     components, castings and granite tiles.  In addition, Maini designs,
     manufactures, sells and services in-plant material handling equipment
     including electric tow tractors, pallet trucks, stackers and dock levelers.
     Maini has also been involved in various aspects of the REVA project
     including market research, vehicle design, vendor development, part
     costing, homologation and testing.  Maini has land, buildings, equipment,
     infrastructure, capital and management expertise that would be valuable to
     launching Newco and desires to have an equity stake in Newco.  Maini may
     include as investors in such members of his family and also such companies
     or bodies corporate owned and controlled by Maini and nominated by him to
     be participants in Newco.


               (c)  Chetan Maini ("CM") has been an employee of Amerigon and the
     program manager for the REVA project for over four years.  He is also the
     son of Sudarshan Maini.  It is anticipated that CM will initially serve as
     the Managing Director of Newco.


               (d)  It is contemplated that Newco will be jointly owned by
     Amerigon, Maini, CM, David Bell, Bob Marcellini and one or more additional
     investors (the "INVESTORS") who have yet to be determined.


                                      3



2.   FORMATION OF NEWCO.


               (a)  Newco will be an Indian Private Limited Company registered
     under the Company Act.  Maini and Amerigon shall take the necessary steps
     for registration of Newco.  If legally available, the name of the new
     company will be "REVA Electric Car Company Private Limited".  Mutually
     acceptable charter and bylaw documents shall be prepared and shall give
     effect to the terms agreed upon between Maini and Amerigon in conformity
     with the terms hereof.  Maini shall take responsibility for securing
     additional investors and Amerigon shall assist Maini in the process.


               (b)  The principal business purposes of Newco will be (i) the
     design, manufacture, assembly and testing of the Product(s) throughout the
     Territory, (ii) marketing, distributing and selling the Product(s)
     throughout the Territory, (iii) servicing the Product(s) sold throughout
     the Territory, (iv) developing technology related to electric vehicles, (v)
     establishing a manufacturing facility as further described in the mutually
     agreed upon outline of the Operating Plan attached hereto as SCHEDULE A and
     (vi) engaging in such other activities as may be incidental or necessary to
     the foregoing.


3.   CAPITALIZATION OF NEWCO


               (a)  The parties will seek to capitalize Newco as described in 
     SCHEDULE B attached hereto.  Amerigon's capital contribution to Newco 
     shall consist of (1) the license to Newco of its electric vehicle ("EV") 
     technology on an exclusive basis for the manufacture, distribution, sale 
     and servicing of the


                                      4



     Products in the Territory, (2) the contribution in-kind of certain 
     tangible assets (electric vehicles and manufacturing kits as set forth 
     on SCHEDULE A), and (3) those other assets described in SCHEDULE A 
     attached hereto.  Maini's capital contribution will consist of (1) the 
     homologation certification including sales tax and road tax 
     exemptions/concessions, (2) market research and studies for the REVA, 
     (3) supplier information and test results and (4) cash and in-kind 
     capital contribution as described in SCHEDULE A attached hereto and 
     shall be made at the times and in the manner specified in SCHEDULE A 
     hereto.  CM, Bob Marcellini and David Bell will each receive equity as 
     set forth on SCHEDULE B in the form of a restricted stock grant for 
     services rendered in the past and future.  Such restricted stock will be 
     non-transferable until vested. 30% of such stock for each will vest 
     immediately and the remainder will vest in equal monthly amounts over a 
     three year period from the formation of Newco or earlier upon such 
     person completing providing services to Newco as specified in the 
     SCHEDULE A.  Failure to provide services as contemplated by the 
     Operating Plan will result in a forfeiture of the restricted stock 
     grant.  In addition, US$2.67 million is intended to be raised from 
     Investors.  A portion of the equity (4.5%) will be reserved for future 
     issuance for purposes including a stock option plan (which may not 
     exceed 2% of the total capital), raising additional capital, and 
     issuance to employees in exchange for salary reduction (for such 
     purpose, at a price of 50% of the then fair market value of the equity). 
     Except as set forth in the preceding sentence, all future non-cash 
     contributions shall be valued at fair market value or other mutually 
     agreeably valuation method.


                                      5



               (b)  The charter documents of Newco will contain effective
     prohibitions on Maini and CM individually or collectively having 50% or
     greater ownership of Newco or having the right to appoint a majority of the
     members or the Board of Directors of Newco.  It is understood that if at
     start-up we do not have all the investors, and hence there exists
     unclassified shares, Maini Group and CM will not be allowed to purchase
     additional shares such that their cumulative ownership in the company
     exceeds 50%.  Notwithstanding the previous sentences, under the following
     conditions Maini and CM, collectively or individually can be allowed to
     have greater than 50% ownership and consequently rights to appoint a
     majority of the Board of Directors:  (1) if Amerigon sells more than half
     of its initial equity holding in Newco to Maini or any other third party,
     excluding transfers to persons as required by contracts existing on the
     date hereof, (2) if future additional financing is required and approved by
     the Board of Directors, and Amerigon or other investors do not invest
     additional funds to maintain their proportionate ownership, and Maini
     provides financing and obtains a 50% or greater ownership interest in
     Newco, (3) per section 6(c), if a third party sells its interest in Newco,
     and Maini participates in such a sale that its ownership exceeds 50% and
     (4) if financial guarantees are required as per section 13(c), then the
     resultant compensation for providing such guarantees may result in Maini
     and CM owning greater than 50%.


               (c)  No party to Newco shall have any obligation to contribute
     additional capital to Newco unless agreed upon by such party.


                                      6



4.   NEWCO GOVERNANCE.


               (a)  Newco shall have a Board of Directors (the "BOARD")
     consisting of not more than fifteen (15) directors, with at least one
     director to be selected by each of Maini, Amerigon and the Investors.  The
     Board will also have outside directors.  One director shall be the Managing
     Director of Newco.  The Managing Director shall be appointed by the mutual
     consent of Amerigon and Maini and shall be a professionally qualified
     person.  The Managing Director shall serve at the pleasure of the Board of
     Directors and be appointed upon such terms and conditions as the parties
     may mutually agree upon.  Chetan Maini shall be the first Managing Director
     of the company.  The Chairman of the Board shall be a director appointed by
     Maini and the Vice-Chairman shall be a director appointed by Amerigon.  The
     term of each of the other directors, except the Chairman, shall be for
     three (3) years.  A director appointed by a particular party may be
     replaced at any time by such party upon notice to the other parties.  Any
     replacement director shall be satisfactory to the other parties.  A
     director may be removed only by the party appointing such director or by a
     majority vote of the other directors, but only for cause (e.g. breach of
     fiduciary duty or malfeasance).  In the event that the number of directors
     is increased, the number of directors a party will appoint in general will
     be proportionate to its ownership interest in Newco.  For every Amerigon
     director, Amerigon will and for every Maini director, Maini may, appoint an
     alternate director resident in India, approved by the Board of Directors of
     Newco as required by The Companies Act of India.  The


                                      7



     attendance of at least one Amerigon director of his alternate and at 
     least one Maini director or his alternate shall constitute a quorum.

               (b)  Except for the actions described in the immediately
     succeeding sentence or as may otherwise be agreed upon, all actions of
     Newco require the affirmative vote of a majority of the directors present
     and voting at the meeting.  Certain actions (including without limitation
     amendments or changes to the charter documents of Newco, liquidation or
     winding-up of Newco, merger of Newco with another entity, sale or transfer
     of all or substantially all of the business or of certain key assets of
     Newco, changes in capital structure of Newco, recapitalization,
     restructuring or stock reclassification of Newco, issuance of additional
     equity interests in Newco, admittance of new investors or shareholders into
     Newco, amendment of the Operating Plan, borrowing of monies or granting of
     loans to third parties, undertaking any substantial expansion of Newco
     operations, any related party transactions, declaration of dividends, etc.)
     will be regarded as Reserved Matters.  Reserved Matters required (i) at
     lease one affirmative vote from each of Amerigon and Maini and (ii) the
     approval of at least 75% of the directors constituting a quorum.


               (c)  The Board shall appoint the officers of the Newco, which
     shall include a Managing Director, a Chief Operating Officer, a Chief
     Financial Officer and a Secretary.  The same person may hold more than one
     officer position.  Officers shall serve at the pleasure of the Board and
     may be removed by the Board at any time.  The Board shall meet on a regular
     basis (not less frequently than quarterly) and, in the first two years
     after the formation of the JV,


                                       8



     management shall have monthly meetings and subsequent telephonic 
     conference calls with the members of the Board to discuss Newco's 
     operations and progress relative to the Operating Plan. The shareholders 
     of Newco shall meet at least once per year at a time and place to be 
     determined by the Board.  All Board members are to be notified on the 
     agenda to be discussed at the board meeting, at least one week prior to 
     the board meeting unless mutually agreed upon in writing by Amerigon and 
     Maini.

               (d)  Newco shall maintain true and accurate accounts and records
     in accordance with generally accepted accounting principles in India
     consistently applied.  Subject to Indian law, Maini, Amerigon and the
     Investors shall be provided with monthly, quarterly and annual financial
     reports, which shall include income statements, balance sheets and cash
     flow statements.  Maini, Amerigon and the Investors shall also receive from
     Newco projected cash flow reports, sales and marketing reports, production
     and quality control reports, annual budgets, business plans and such other
     information and reports as may be agreed upon and at such times as may be
     agreed upon Newco shall hire an internationally recognized "Big Five"
     independent accounting firm, satisfactory to Amerigon and Maini, to audit
     the annual financial statements.  Such auditor's report shall be supplied
     to all shareholders.  The books and records of Newco shall be accessible to
     the Maini, Amerigon and the Investors and their representatives.


                                      9



               (e)  It is understood that section 4(a), 4(b), 4(c) and 4(d) may
     possibly need to be modified to conform to existing company laws in India. 
     It is anticipated that such changes will not significantly alter the
     content of the above.


5.   TRANSACTIONS BETWEEN NEWCO AND AMERIGON OR MAINI OR OTHERS.


               (a)  Concurrently with formation and capitalization of Newco,
     Amerigon will enter into a royalty bearing license (the "EV LICENSE") with
     Newco pursuant to which Amerigon will license Amerigon's EV technology on
     an exclusive basis in the Territory.  Newco will have no right to
     sublicense and no rights to the EV technology outside the Territory;
     provided, however, that with Amerigon's prior written consent, which will
     not be unreasonably withheld, Newco may manufacture products in the
     Territory for export outside the Territory in order to fulfill commitments
     given to the Indian government and outlined in the Operating Plan
     (currently, 15%-20% of vehicles manufactured).  The parties recognize that
     Amerigon retains all rights to the technology outside the Territory and may
     limit or restrict Newco's exports of finished products incorporating the
     technology.  Amerigon intends to enter into additional joint ventures with
     other parties outside the Territory and may grant to such parties exclusive
     rights which would prevent Newco from exporting products to certain areas. 
     Prior to making any significant investments to modify the REVA for export
     outside the Territory, Newco will consult with Amerigon to determine
     appropriate terms and conditions on such exports to assure minimum export
     time period and volume.  Newco will pay Amerigon royalties of 5% on
     domestic sales and 8% on export sales for a period of 5 years (commencing
     with the first year of operating profit, which the


                                     10



     parties anticipate to be year 3).  Royalty payments will be calculated 
     per the Indian Industrial Policy.  Royalties will be paid no less 
     frequently than annually and once a quarter in the 3rd, 4th and 5th year 
     of royalty payment, and the EV License will contain other customary 
     terms and conditions acceptable to Amerigon. If in year 3 Newco has an 
     operating profit but would have a net loss if it paid Amerigon the 
     required royalty, Newco will have an option to defer payment of such 
     part of the royalty for year 3 as would cause it to have a net loss and 
     pay such portion of the royalty the following year, without interest.

               (b)  Amerigon will enter into an exclusive, royalty-free, 
     non-transferable license with Newco to manufacture and sell Amerigon's 
     proprietary Climate Control Seat system ("CCS") in the Territory, but 
     only for electric vehicles manufactured in the Territory (the "CCS 
     LICENSE"). the CCS License will contain other terms and conditions 
     acceptable to Amerigon.  In connection with the CCS License, Newco will 
     send one engineer to visit Amerigon's offices to learn more about the 
     CCS for the purpose of integrating it into the REVA.  It is anticipated 
     that this process would take about 6 weeks.  It is also anticipated that 
     Newco will select one of Amerigon's existing CCS models for integration 
     into the REVA.  If Newco desires to purchase finished CCS modules from 
     Amerigon, Amerigon will supply them, regardless of quantity ordered, at 
     the same price that Amerigon charges its principal customer for the same 
     model.  If Newco assembles CCS units in the Territory but desires to 
     purchase parts from Amerigon, Amerigon will attempt to supply Newco with 
     parts and will charge Newco cost plus 10% (plus all applicable taxes, 
     duties, etc.), FOB Amerigon's


                                      11



     facility in Irwindale, California.  All sales of products will be made 
     pursuant to Amerigon's standard terms and conditions of sale.  If Newco 
     desires to manufacture the CCS in the Territory, Amerigon will cooperate 
     with Newco and provide technical assistance; provided, however, that 
     Newco will reimburse Amerigon for all direct costs associated with such 
     assistance.

               (c)  Except as otherwise provided herein, all services, parts,
     components, supplies and other materials and services provided to Newco by
     Amerigon or Maini or any other owner of Newco shall be valued at prevailing
     world market rates or such other mutually acceptable valuation method.  All
     agreements, contracts or other arrangements between Newco and Maini,
     Amerigon, the Investors or any other third party shall be at arms-length
     and the valuation of the services or goods subject to such agreements,
     contracts or arrangements shall be at fair market value or such other
     valuation method unanimously approved by the Board.  Any non-fair market
     value valuation is subject to independent verification by independent
     accountants approved by the Board.


               (d)  Upon the formation of Newco, Newco will be responsible to
     complete all design and development activity to take the REVA to
     production.  All technology developed by Newco will belong to Newco.


               (e)  Newco shall be formed and capitalized and the Technology
     License Agreement between Amerigon and Newco shall be concluded latest by
     31st March 1999.



                                      12



6.   TRANSFER OF SHARES; SHAREHOLDER PROTECTION.


               (a)  No shareholder may sell, assign, pledge, offer, transfer or
     otherwise dispose of or encumber any shares of Newco or any title or rights
     to such shares in Newco owned by such shareholder without the prior written
     consent of the Board of Newco and by each of Amerigon and Maini; PROVIDED
     that Amerigon or Maini may transfer its shares to third parties in
     accordance with its presently existing contractual commitments and provided
     that such commitments are made known in advance to the Board of Newco. 
     Notwithstanding anything contained in clause (b) of paragraph 3, in the
     event of a permitted transfer of shares of Newco, such permitted transferee
     may be required to enter into an agreement, in form and substance
     satisfactory to Newco, with Newco and the non-transferring shareholders
     whereby such permitted transferee agrees to take the place of the
     transferring shareholder with respect to, and to be bound as a party to,
     the joint venture agreement and to assume such of the rights and
     obligations of the transferring shareholder.  All permitted transfers shall
     be subject to terms and conditions agreed upon by the parties to Newco.


               (b)  In the event the Newco must raise additional funds, per
     Indian Company Laws, all shareholders will have preemptive rights to
     subscribe for pro rata and purchase additional shares and contribute
     additional capital to maintain its then existing ownership interest in
     Newco.  Such pre-emptive rights shall be on terms and conditions agreed
     upon by Amerigon and Maini in the definitive agreements.


                                      13



               (c)  Amerigon and Maini shall have the right to participate, pro
     rata, with respect to the any sale by any party of its interest in Newco. 
     In the event that the Board of Newco has approved a sale of Newco, each
     shareholder shall be required to participate in such sale and sell its
     shares of Newco on the terms approved by the Board.


7.   LIQUIDITY.


          The definitive agreements shall include reasonable
     provisions for Amerigon, Maini and the Investors to sell and/or obtain
     liquidity with respect to their investment in Newco after a five to ten
     year holding period.  Subject to approval of the Indian Foreign Investment
     Promotion Board and any other Indian governmental authority, possible
     provisions include (i) the right to participate in public offerings by
     Newco, (ii) the right to require Newco or the other shareholders of Newco
     to purchase their equity interests in Newco (which may be satisfied by a
     down payment and payments over time), and (iii) the right to cause a sale
     of Newco.


8.   DEFINITIVE AGREEMENTS.


          The definitive agreements shall contain terms, conditions, 
representations, warranties, covenants and indemnities customary and 
appropriate for a transaction of the type contemplated, including those 
summarized herein.


                                      14



9.   EXPENSES.


          Each party shall bear its own expenses in connection with the 
preparation, negotiation and execution of this letter agreement (except the 
Newco will reimburse Amerigon for travel expenses related to the execution of 
this letter agreement).  Following execution of this letter agreement, all 
expenses related to Newco and which are approved by CM (such approval not to 
be unreasonably withheld), including its formation, registration, preparation 
of definitive documentation, travel expenses, and other expenses directly 
related to the business of Newco (including planning, organization, kiting, 
technical development, etc.) shall be borne by Newco.  If initially expended 
by a party hereto, such expenses will be reimbursed by Newco promptly (but in 
no event later than two weeks) upon such party submitting appropriate 
documentation; provided, however, that the first reimbursement to Amerigon 
may take up to four weeks because of the time needed to obtain the required 
government approvals to transfer funds.  However, if any party shall require 
separate legal advice, such expenses will be borne by such party and not 
Newco.  Until Newco is formed and capitalized, Maini will reimburse such 
expenses and provide all monetary payments on behalf of Newco, which shall be 
treated as capital contributions to Newco by Maini.  The parties hereto 
recognize that projected expenses in the U.S. by Amerigon and the key 
employees relating to Newco are approximately $115,000 for the first three 
months following execution hereof.


                                     15



10.  CONFIDENTIALITY.


          Each party hereto shall agree to keep confidential certain 
confidential information obtained by it in connection with this agreement, 
any related agreements or the management and operation of Newco, except as 
otherwise required by law.

11.  DISPUTE RESOLUTION.


          Any disagreement, dispute, controversy or claim (a "DISPUTE") 
arising out of or relating to Newco, this agreement or any related 
agreements, the obligations of the shareholders of Newco or the parties to 
this agreement, shall be resolved first through friendly consultations among 
the parties in dispute and if such Dispute is not resolved through friendly 
consultations, then through binding arbitration conducted by the 
International Chamber of Commerce (Paris), in accordance with its 
International Arbitration Rules.  The arbitral panel shall consist of a 
single arbitrator who is independent of the shareholders and such arbitration 
shall be conducted in London, England, or any other location agreed to in 
writing by the parties.  The language to be used in the arbitration shall be 
English, although documentary evidence may be in other languages.  The 
decision of the arbitration panel shall be final and binding on all the 
shareholders and may be entered in any court having jurisdiction and enforced 
against the shareholders.  The arbitration provisions shall not preclude in 
any way a shareholder from seeking or obtaining preliminary or injunctive or 
other equitable relief from a court of competent jurisdiction.  If the 
subject matter of the Dispute relates to the infringement or misappropriation 
of copyrights, patents, trade secrets or other proprietary rights, the party 


                                     16



alleging such infringement or misappropriation may elect to institute an 
action in a court of competent jurisdiction without  using the arbitration 
provisions set forth herein.

12.  GOVERNING LAW.

          This letter and the legal relations between the parties shall be 
governed by the law of India.

13.  GENERAL.

               (a)  Upon execution of this document, Amerigon shall not solicit
     or engage in negotiations with any entity other than Maini for the purpose
     of such entity becoming an operating partner (in place of Maini) in a joint
     venture to produce electric vehicles in the Territory; provided, however,
     that this shall not restrict Amerigon from having discussions with possible
     investors in Newco consistent with terms hereof.


               (b)  Amerigon shall use commercially reasonable efforts to
     retrieve all information Amerigon has provided to various parties in India
     regarding the REVA project, such as KPMG, SIL, BEML, C&L and others, and to
     cause such parties to maintain the confidentiality of such information.


               (c)  As per the Operating Plan, it is anticipated that Newco will
     require additional funds in year 2001.  However, Newco may need additional
     funds before 2001 to cover unforeseen circumstances.  It is recognized that
     if such funding is sought from financial institutions that require
     guarantees, all promoter and shareholders in Newco holding more than 5% of
     equity in Newco may be


                                       17



     requested to provide such guarantees to the financial institutions.  
     Promoters and shareholders with more than 5% equity in Newco that 
     provide such guarantees will receive fair compensation, for every time 
     such a guarantee in undertake, in the form of additional stock (maximum 
     of 2% of the guarantee amount) for taking on the additional liability 
     associated with such financial guarantees.  In addition, in order to 
     prevent dilution to  smaller shareholders in Newco, the parties will 
     consider offering to them the opportunity to provide financial 
     guarantees and to receive the same proportionate compensation therefor 
     as is given to the larger shareholders.

               (d)  If any party hereto breaches or fails to perform its
     obligations under this letter agreement, it shall be liable to the other
     party for such party's actual damages, in addition to any other rights it
     may have.  Furthermore, Amerigon's obligations under Section 5(a) and 5(b)
     hereof are conditioned upon continued compliance and performance by Maini
     of its obligations hereunder.  The license under Section 5(a) and 5(b)
     shall not be affected by a breach by Amerigon and will survive such breach
     by Amerigon.  The obligation of Amerigon hereunder shall survive and be
     otherwise unaffected by any change of control or merger transactions.


               (e)  This letter agreement shall be binding upon and inure to the
     benefit of each party and its respective successors and permitted assigns,
     and nothing herein, express or implied, is intended to confer upon any
     other person any rights or remedies of any nature whatsoever.


                                      18



               (f)  This letter agreement constitutes and contains the entire
     agreement concerning the subject matter hereof between the parties and may
     only be amended or superceded by a written agreement signed by both
     parties.  This letter agreement supercedes and replaces all prior
     negotiations and all agreements proposed or otherwise, whether written or
     oral, concerning the subject matter hereof.  This is a fully integrated
     agreement.

               (g)  The responsibility to prepare all legal documents will be
          Newco's and such documents will be prepared in India.


                                       19



IN WITNESS WHEREOF, THE PARTIES HEREUNTO HAVE AFFIXED THEIR RESPECTIVE HANDS 
AND SEALS, THE DATE AND YEAR, FIRST HEREINABOVE WRITTEN.

                   SIGNED AND DELIVERED
                   ON BEHALF OF:
                   AMERIGON INCORPORATED ("AMERIGON")
                   By Mr. Lon E. Bell
                   /s/ LON E. BELL
                   Name:  Lon E. Bell
                   Designation:  Chairman and Chief Executive Officer

                   SIGNED AND DELIVERED TO
                   MR. SUDARSHAN K. MAINI
                   ON BEHALF OF:
                   HIMSELF AND
                   MAINI MATERIALS MOVEMENT PVT.LTD.
                   MAINI PRECISION PRODUCTS PVT. LTD.
                   (COLLECTIVELY "MAINI")
                   BY:  MR. SUDARSHAN K. MAINI
                   /s/ SUDARSHAN K. MAINI
                   Name:  Sudarshan K. Maini
                   Designation:  Chairman


                                      20



                                     SCHEDULE A
                                          
                                   OPERATING PLAN

I)   AMERIGON'S CONTRIBUTION


Amerigon shall transfer all of its right, title and interest (for the 
Territory only) in and to the following as it exists on the date hereof to 
Newco as part of its capital contribution:

1.   All CAD models, drawings, electrical schematics for the REVA design

2.   All software and hardware information for the REVA's EMS

3.   Test reports, REVA specific test software, test results etc.

4.   Database of all information about suppliers, part cost, weight, build
     level, BOM, etc.

5.   All interior and exterior concept sketches related to REVA design

6.   Exterior pictures and masters of the REVA

7.   REVA 1/4 scale mold

8.   5 complete vehicles (yellow, green, 2 white and red).  Amerigon will
     transfer least arrangements with CALSTART (for the REVA used in Alameda)
     and WINROCK (for the 2 REVA's used in Delhi.  The Newco will keep one
     vehicle at all times at Amerigon.

9.   3 aluminum running chassis and 16 vehicle kits

10.  Prototype tooling and fixtures for the REVA including all body, chassis,
     interior, door frame, seats.

11.  Electric Vehicle Test equipment used by the REVA program:  IPS bench tester
     (including dedicated computer), date acquisition, harness tester, specific
     electronic testing and assembly tools.


                                      1



12.  All specific equipment including computers for assembly, programming,
     debugging and testing of the EMS and IPS for the REVA.

13.  Library of all books, magazines, technical papers and supplier catalogs
     related to REVA.

14.  Miscellaneous EV equipment that is required by the REVA Program.  This
     would include floor chargers, motors, controllers, spare parts, etc.

OTHER

     SPACE REQUIREMENTS:  It is anticipated that approximately 4-6 months of
     design effort will be required in the US prior to transferring the
     information to India.  To allow smooth continuation of the program,
     Amerigon will allow Newco, the continued use of the current EV office,
     infrastructure (computers, phones, fax, etc.) and shop space for a period
     of 6 months.  The EMS development for the REVA may continue for 2
     additional months and would require a small work place for 2-3 people and
     shop space to test the vehicle.  During this period, Amerigon will bear all
     expenses related to rent, utilities, etc., but not any marginal out of
     pocket costs (e.g. phone charges).

     COMPUTERS:  Amerigon will allow Newco use of IDEAS and CATIA stations that
     originally belong to the REVA program for a period of 6 months.  In
     addition, Amerigon will transfer 1 CATIA computer station and 1 IDEAS
     computer station with all software and accessories of Newco, if permitted
     by the terms of the software licenses.

     EMPLOYEES:  To enable the program to continue smoothly, Amerigon will
     continue to employ Chetan Maini, Todd Cameron, Ellen Morris and Dudley


                                      2



     Hurter for a period of 4-6 months on its payroll.  Newco will reimburse
     Amerigon for all direct employee costs including benefits (20% of base
     salary).  Amerigon will be liable for all previously accrued vacation cost
     and severance costs.  If the period exceeds 6 months, Amerigon and Newco
     will need to re-discuss this issue.  Amerigon will also allow the use of
     Steve Griffin for the EV program on a priority basis.  It is anticipated
     that Newco will require his services for 8-10 hrs a week.  David Bell is
     key to the proper execution of the REVA's electrical system and EMS and
     hence the technical success of the program.  Upon signing of the MOU, David
     Bell will be immediately allowed to work on the REVA Program for a minimum
     of 25% of his time.  It is understood that it would take David Bell
     approximately 10 weeks to transition the radar program responsibility to
     another person.  It is expected that his time commitment to the REVA
     program will gradually increase to 75% by the end of 10 weeks, and to 100%
     in less than 18 weeks.  Amerigon will do its best to make sure that this
     happens.  During this period, Amerigon will continue to employ David Bell
     and be reimbursed by Newco for his direct costs including benefits.


II)  MAINI'S CONTRIBUTION

1.   Indian component costing and supplier information and quotations

2.   Marketing studies, research including all results of India 2010 Exhibition

3.   Test results including Shaker tests conducted at ARAI, safely tests and
     road tests in Bangalore

4.   Homologation and roadworthiness certification for the earlier REVA
     prototype


                                       3



5.   Transfer of employees to the JV, that are currently employed by the Maini
     Group and that worked on the REVA program.

6.   US $ 1 million in new cash.  A significant portion will be invested in
     Indian Rupees.

7.   Land, buildings and infrastructure for the first 3 years.  Sufficient land
     and building space would be provided so as to accommodate the production
     per the current business plan.  This would work out to approximately 1000
     cars per single shift.  Infrastructure support would include use of Maini
     group's current power and generator system, water, security, canteen
     services, etc.  The JV will pay monthly costs for all utility services such
     as power, water, etc. to Maini Group.  Where costs are difficult to
     determine, a fair market value will be assessed.

8.   Maini Group will provide the JV a 15 acre plot of land in Malur, for
     production expansion.  Although the business plan required the use of the
     additional land in 2001, it is free to use it prior to that for the
     expansion of its manufacturing facilities.

9.   Maini group will assist in hiring required personnel operations,
     engineering, vendor development, purchasing, administration, vehicle
     assembly, accounting, etc.  Maini Group will also transfer a few people
     from its other divisions to the JV, so as to provide the JV with a start-up
     team.  This would include people with experience in operations, planning
     and vendor development.

10.  Maini Group will allow the JV the use of its Pro-E computer stations for
     production development of the REVA.  In addition, it will provide
     engineering support required to go to production on a actual cost basis.


                                      4



11.  Maini Group will be responsible for arranging any additional initial
     financing required to get into production as per the current business plan.

III) TIME AND MANNER OF CONTRIBUTION


Subject to government approvals, all in-kind contributions by Maini and 
Amerigon shall be made before March 31st 1999 or no later than 3 weeks after 
the formation of Newco, whichever occurs earlier.

Cash commitments by Maini and other investors are laid out in the table 
below. It is anticipated that all the investors will be finalized prior to 
March 31st 1999.


- --------------------------------------------------------------------------------
                   Q1-99      Q2-99     Q3-99     Q4-99     Q1-2000     TOTAL

- --------------------------------------------------------------------------------
                                                      
      MAINI         160        160       300       230        150        1000

- --------------------------------------------------------------------------------
    INVESTORS                  870       670       670        460        2670

- --------------------------------------------------------------------------------
      TOTAL         160       1030       970       900        610        3670

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

All amounts are in thousands of US dollars
Conversion rate assumed at Rs 42.5 equals US $1

IV)  EMPLOYEE STOCK PLAN

Per the operating plan it is anticipated that the services David Bell will be
required to transfer all the technology related to the EMS, IPS as well as the
entire REVA electrical system.  It is anticipated that David Bell will need to
spend 2-4 months in India and that his task will be completed by September 1999.

It is anticipated that Chetan Maini and Bob Marcellini would assist the Newco to
productionise the REVA and that their efforts would be required for a maximum
period of 3 years.


                                      5



The definitive agreements will contain detail clauses that better define the 
time periods of vesting and commitments of Chetan Maini, Bob Marcellini and 
David Bell that allow vesting of their respective options.

V)   KEY HIGHLIGHTS OF THE IMPLEMENTATION PLAN

A.   PROJECT SCHEDULE AND START-UP PLAN

A summary of the project schedule and key milestones is shown below.  Based 
on finalizing financing by the end of December 1998, production will commence 
by February 1, 2000.  The critical path item is testing which is a 1-year 
period for the prototype vehicles and 3-month period for pre-production 
vehicles.  This is essential to ensure that the quality and reliability of 
the vehicle is to the highest standards.

The start-up plan would include detail project planning supported by a key 
person in India.  Simultaneously, an organizing and operating team in India 
will be formed.  In the US, the focus on the first 3 months will be data 
compilation, shipping of kits, and working on key long term items - body 
panels, transmission and electrical system.

The production design effort will be for 5 months and all tools and fixtures
should be completed by October 1999, giving 2 months for tooling verification
and pilot production run.

B.   ORGANIZATION AND STAFFING PLAN

For the first year (prior to production), the JV would employ a team of 55 
people as shown in the table below.  The proposed organization chart is shown 
as two phases:


                                      6



Phase One for initial start-up and Phase Two as the company matures.  Maini 
Group will be able to transfer a skeleton staff of 15 people for start-up 
that are ideally suited for the project.  The remaining to be hired. The 
company will recruit 8-10 people who have previously worked on the REVA 
project.  The recruitment process will take 2-4 months.  Work using the 
skeleton team will start prior to that.  Candidates who potentially fit the 
roles of key managers have been identified and will be recruited.

In addition to regular employees, 4 consultants are required to assist in the 
body development, interior surfacing and suspension optimization.  Parametric 
Technologies (creators of Pro-E software and consultants with extensive 
automotive experience) have assured the company that they can provide all 
required support.



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