Document:

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                                                                    EXHIBIT 10.2

                             SHAREHOLDERS AGREEMENT

This Shareholders Agreement is entered into on this [-]th day of 2003 by and
between:

(1)    IMPCO Technologies Inc., a company incorporated and existing under the
       laws of State of Delaware U.S.A., with registered offices at 16804,
       Gridley Place, Cerritos, Ca., U.S.A., represented by its director and
       attorney-in-fact, Mr. Terence K. Clapp (hereinafter referred to as
       "Impco"); and

(2)    Mr. Mariano Costamagna, born in Narzole, on 15 March 1951, and domiciled
       at Cherasco, Via La Morra, 2, married, in a separation of assets regime;

(3)    Mr. Pier Antonio Costamagna, born in Narzole, on 22 July 1952, and
       domiciled at Cherasco, Via La Morra, 2, married, in a separation of
       assets regime;

       (Messrs. Mariano and Pier Antonio Costamagna, are hereinafter jointly
       referred to as "Costamagna").

WHEREAS:

(A)    Impco and Costamagna on the date hereof have entered into a Sale and
       Purchase Agreement (the "Agreement") pursuant to which Impco purchased
       from Costamagna a participation equal to 50% of the capital stock of
       B.R.C. S.r.l. (the "Parent").

(B)    In accordance with the Signing Option terms and conditions, on the date
       of execution of this Agreement the Quota is registered in the name of the
       Fiduciary Company which shall hold it in escrow until 30 September 2003
       pursuant to the Irrevocable Instructions.

(C)    Costamagna aggregately holds the residual 50% participation in the
       capital stock of the Parent; as follows:

       .  Mariano Costamagna         25%

       .  Pier Antonio Costamagna    25%.

(D)    The Parent holds a quota representing 100% of the issued and outstanding
       capital stock of M.T.M. S.r.l. (the "Company") and indirectly controls
       B.R.C. Brazil and B.R.C. Argentina (the "Subsidiaries").

(E)    Pursuant to the Agreement Costamagna granted to Impco certain call
       options on the residual participation held by Costamagna in the Parent
       and, conversely, Impco granted to Costamagna certain put options for the
       sale of their residual participation in the Parent to Impco; in addition,
       Impco granted to Costamagna certain call options for the purchase of all
       or a portion of Impco's participation in the parent in certain events of
       defaults regarding Impco pursuant to the Agreement.

(F)    Impco and Costamagna hereby intend to regulate the governance of the
       Parent and their mutual relationship as shareholders of the Parent, in
       the frame of the arrangements set out in the Agreement.

NOW, THEREFORE, the parties hereto have agreed as follows:

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1.     DEFINITIONS

1.1    Terms defined in the Agreement shall have the same meaning when used
       herein.

1.2    In addition, the following terms shall have the following meanings:

       1.2.1   "Articles" means the articles of association of the Companies,
               attached hereto as Annex 1.

       1.2.2   "Business Plan" means the business plan for the period 2003 -
               2004, the terms of which shall be resolved by the board of
               directors of the Company.

       1.2.3   "Companies" means the Parent and the Company.

       1.2.4   "Impasse" means any of the cases of inability by the directors or
               shareholders of any of the Companies to reach the required
               majority to take a valid resolution of any of the following
               matters: approval of the Companies' financial statements and/or
               business plans, appointment of the board of directors,
               appointment of the Managing Director, capital increases of the
               Companies (to the extent that the capital increase is required to
               comply with any law provision or any order of competent
               authority), distribution of dividend according to the agreed
               dividend pay-out policy, or on any other resolution where failure
               to take such resolution may result in any of the Companies'
               impossibility to carry out its operations or business.

2.     RANGE OF APPLICATION OF THIS SHAREHOLDERS AGREEMENT

2.1    This Shareholders Agreement is intended to govern in a consistent manner
       the governance of both the Parent and the Company. All the provisions
       hereof shall apply to both the Companies or, in case of merger between
       the Companies, to the company resulting from the merger.

2.2    The provisions of this Shareholders Agreement shall apply to the
       Subsidiaries and to any future subsidiaries of the Companies only if the
       same are expressly mentioned by the relevant provisions, provided that it
       is the intention of the Parties to ensure that the management of the
       Subsidiaries and of any future subsidiaries of the Companies is made
       under the control of the board of directors of the Companies and in a
       manner fully consistent with the governance rules provided for the
       Companies.

2.3    The Parties hereby agree and warrant reciprocally to exercise the voting
       rights pertaining to their respective participations and to use their
       influence on the directors respectively designated by them to cause that
       they exercise their respective voting rights, so as to duly and
       punctually implement the agreements set out below.

2.4    The Parties agree that any deviation from the governance rules set out
       below by any of the directors shall be deemed, between the Parties, as a
       breach of this Shareholders Agreement committed by the Party who
       designated such director.

2.5    Impco agrees to cause the Fiduciary Company to exercise the voting rights
       so as to duly and punctually implement the agreements set out hereunder,
       until the Quota will be

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       registered under the name of the Fiduciary Company in accordance with the
       Irrevocable Instructions.

3.     BOARD OF DIRECTORS

3.1    The Parties agree that the board of directors of the Companies shall be
       composed of seven members, four of which shall be designated by Impco and
       three of which shall be designated by Costamagna. The Parties acknowledge
       that shareholders' meetings of the Companies held on the Execution Date
       have appointed the following persons as directors of the Companies: Mr.
       Terence K. Clapp, Mr. Robert M. Stemmler, Mr. Timothy Stone and Mr. Pier
       Luigi Mancalvo as directors designated by Impco and Mr. Mariano
       Costamagna, Mr. Pier Antonio Costamagna and Marco Seimandi as directors
       appointed by Costamagna.

3.2    The term of office of the board of directors of the Companies so
       appointed will last on 30 September 2007. In the event that, during the
       term of office, one or more directors other than Mr. [-] shall cease from
       the office for any reason whatsoever, the Party who originally designated
       the ceased director shall have the right to designate the individual who
       should replace the ceased director.

3.3    Should any of the Parties wish to revoke any of the directors designated
       by it, the other Party shall be under an obligation to exercise the
       voting rights pertaining to it in a manner so as to allow such revocation
       and the appointment of another director designated by the revoking Party
       to replace the revoked director, provided that, the revoking Party shall
       keep the other Party and the Companies harmless and indemnified against
       any claim that the revoked director may have towards the Companies as a
       result of such revocation. For the avoidance of any doubt, the Parties
       hereby acknowledge and agree that the inability of the shareholders'
       meeting to take a valid resolution on the revocation of any of the
       directors shall not result in an Impasse.

4.     AUTHORITY OF THE BOARD AND DELEGATION OF POWERS

4.1    Pursuant to the Articles, the board of directors shall be granted all
       powers of ordinary and extraordinary administration of the Companies.

4.2    The board meetings shall be validly held by the attendance of a majority
       of the directors in office and, save as provided in Section 4.3 below,
       will validly resolve by the favorable vote of the majority of the
       directors in attendance. To the extent possible, board meetings may be
       held by teleconference or video conference.

4.3    Notwithstanding any contrary provision contained in the Articles,
       approval of the following resolutions shall be subject to the favorable
       vote of not less than five directors:

       4.3.1   Sale or purchase of assets, businesses or participations having a
               value (taking into account the liabilities assumed or assigned)
               higher than Euro 2,000,000 (Euro two million).

       4.3.2   Undertaking of financial obligations for an amount of more than
               Euro 2,000,000 (Euro two million).

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       4.3.3   Introduction of new lines of business or dismissal of any
               existing line of business.

       4.3.4   Execution of contracts between Impco or any affiliates or
               subsidiaries of Impco and the Companies.

       Resolution on the foregoing matters may not be delegated to any single
       director.

4.4    For the entire duration of the term of office of the board of directors
       pursuant to Section 3.2 above, Mr. Mariano Costamagna shall be Managing
       Director of the Companies and shall have the powers listed in Annex[-]
       attached hereto. The Managing Director shall periodically, and not less
       often than quarterly, make a full and detailed report to the board of
       directors of the Companies about the activities undertaken in accordance
       with the powers granted to him. In addition each director shall have the
       right to ask and obtain explanations and information, including all
       relevant documentation, as to any activity that the Managing Director
       shall conduct on behalf of the Companies.

4.5    In the event that Mr. Mariano Costamagna ceases for any reason whatsoever
       to be a director of the Companies, the new Managing Director shall be
       appointed by the board of directors.

4.6    The Chairman of the board of directors shall be chosen among the
       directors designated by Impco.

5.     BOARD OF STATUTORY AUDITORS

5.1    The board of statutory auditors of the Companies shall be composed of
       three effective members and two alternate members. The term of office of
       the board of statutory auditors shall be three years.

5.2    One effective member (who shall act as Chairman of the board of statutory
       auditors) and one alternate member will be designated by Impco; two
       effective members and one alternate member will be designated by
       Costamagna. The Parties acknowledge that shareholders' meetings of the
       Companies held on the Execution Date have appointed the following persons
       as statutory auditors of both the Parent and the Company: Mr. Pio Bersani
       and Mr. Nicola Sirtori respectively as effective and alternate auditor,
       designated by Impco; Mr. Claudio Tibaldi, Mr. Danilo Tibaldi and Ennio
       Berlinghieri respectively the first two as effective and the third one as
       alternate auditor, appointed by Costamagna.

5.3    In the event that, during the term of office, one or more auditors shall
       cease from the office for any reason whatsoever, they shall be replaced
       by the alternate auditor designated by the Party who had originally
       designated the ceased auditor, and the same Party shall also designate
       the new alternate auditor to be appointed.

6.     RIGHT OF FIRST REFUSAL

6.1    The Parties agree that for the entire duration of this Shareholders
       Agreement no sale of the participations held by Costamagna in the Parent
       shall be permitted.

6.2    Without prejudice to the provision of Section 6.1, any Party who intends
       to sell all or any part of its participation in the Parent (the "Selling
       Shareholder") shall give written

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       notice of its inception to sell to the other Party, specifying the name
       of the proposed purchaser of the participation (the "Potential
       Purchaser"), the quota to be sold (the "Offered Quota"), the agreed price
       and any other terms and conditions of the sale.

6.3    The other Party shall have 60 days from the date of receipt of the notice
       to inform the Selling Shareholder whether it intends to exercise the
       right of first refusal, thereby purchasing all or any portion of the
       Offered Quota at the conditions indicated in the notice.

6.4    After the lapse of the 60 day period the Selling Shareholder shall be
       obliged to sell to the Party who exercised the right of first refusal the
       Offered Quota or the portion thereof for which the right of first refusal
       was exercised and shall be free to sell to the Potential Purchaser the
       remaining portion of the Offered Quota, if any, subject to the terms and
       conditions set out in Section 6.5 below and provided that the sale to the
       Potential Purchaser shall have to take place within 60 days from the
       lapse of the right of first refusal period and be made at the same
       conditions specified in the Selling Shareholder's notice set out in
       Section 6.2 above, otherwise the right of first refusal procedure shall
       have to be repeated.

6.5    In the event that the Selling Shareholders is Impco, as an alternative to
       the exercise of the right of first refusal provided for in this Section 6
       or of the tag-along right provided for in Section 7, Costamagna shall
       have the right, during the same 60-day period provided for in Section
       6.3, to exercise the put option right provided for in Section 8 of the
       Agreement at the conditions therein provided. Should Impco fail (i) to
       purchase the Sellers' Quota for which the put option is exercised by
       Costamagna, or (ii) to pay the relevant price, Clause 9 of the Agreement
       shall become applicable. Impco shall have the right to sell the Offered
       Quota only on condition that the provisions of this Clause 6.5 are
       fulfilled.

6.6    The sale of the Offered Quota for which the right of first refusal was
       not exercised shall be subject to the Potential Purchaser agreeing to be
       bound by all obligations of this Shareholders Agreement and the relevant
       provisions of the Agreement in the same manner as the Selling Shareholder
       in relation to the Offered Quota, provided that the other Party shall
       have the right to give to the Selling Shareholder and the Potential
       Purchaser written notice or termination of this Shareholders Agreement
       and the Agreement, whereupon this Shareholders Agreement and the
       Agreement shall be deemed terminated in respect of the Potential
       Purchaser.

7.     TAG ALONG RIGHT

7.1    Upon receipt of a notice pursuant to Section 6.2 from the Selling
       Shareholder the other Party, during the same 60 day period following the
       receipt of the notice may, as an alternative to the exercise of the right
       of first refusal, exercise a tag along right, by giving to the Selling
       Shareholder written notice that it intends to sell all or any part of the
       participation held by it (the "Tag Along Quota") to the Potential
       Purchaser under the same terms and conditions specified by the Selling
       Shareholder in its notice.

7.2    If the other Party has exercised the tag along right, the Selling
       Shareholder shall be under an obligation, as a condition precedent to the
       validity of its sale to the Potential Purchaser, to procure that the
       Potential Purchaser purchases from the other Party the Tag

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       Along Quota under the same terms and conditions of sale of the Offered
       Quota indicated in the notice given pursuant to Section 6.2.

7.3    Should the Potential Purchaser fail to purchase the Tag Along Quota, the
       Selling Shareholder shall purchase the Tag Along Quota in place of the
       Potential Purchaser at the same terms and conditions (including the
       purchase price specified in the notice sent pursuant to Section 6.2.

8.     BUSINESS PLAN

8.1    The Parties (i) acknowledge that the Business Plan will reflect the
       industrial, financial and business guidelines agreed between them with
       respect to the management and operations of the Companies and will be
       updated yearly and (ii) undertake, also pursuant to Article 1381 of the
       Civil Code to cause the directors of the Companies and of the
       Subsidiaries, respectively designated or caused to be designated and
       appointed by each of them, to comply and take all actions necessary to
       comply with such Business Plan, as amended from time to time, in
       accordance with the provisions of Section 8.2 below.

8.2    The Parties recognise that the Business Plan may be affected by changes
       in external business, political, financial, technical and other
       conditions and accordingly they undertake to amend, revise and improve,
       from time to time, the Business Plan in order to adjust the strategies of
       the Companies to such changes.

8.3    As part of the Business Plan the Parties have agreed to cause that the
       Parent and the Company merge as soon as reasonably practicable. Upon
       merger of the Parent and the Company all provisions of this Shareholders
       Agreement referring to the Companies or to the Parent or to the Company
       shall be deemed to refer to the entity resulting from the merger.

9.     IMPASSE RESOLUTION

9.1    In the event that an Impasse occurs each Party shall have the right to
       give notice to the other Party in writing that an Impasse has occurred,
       whereupon the following procedure will be started.

9.2    The matter on which the Impasse has occurred will first be re-submitted
       to the board of directors or, as the case may be, the shareholders
       meeting to the company where the Impasse occurred within thirty days of
       the date on which a notice of Impasse was sent by any of the Parties. In
       the event that the Impasse occurs again, the matter will be deferred to a
       committee formed by Mr. Mariana Costamagna on behalf of Costamagna and
       the CEO of Impco and behalf of Impco, who will endeavour to find a
       solution to the Impasse consistent with the principles of this Agreement
       within fifteen days from the date of repetition of the Impasse.

9.3    If the committee fails to solve the Impasse, the Party whose contrary
       vote has generated the Impasse will be under an obligation to formulate
       to the other Party an offer in terms of price per share of the Parent.
       The other Party shall, at its discretion, have the right to (i) purchase
       the participation in the Parent of the Party who generated the Impasse at
       the price offered discounted by 15%, or (ii) sell to such Party its own
       participation in the Parent at the price offered by the Party who
       generated the Impasse increased by 10%.

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9.4    Upon exercise by the Party who did not generate the Impasse of its
       discretionary right pursuant to Section 9.4 above, the sale and purchase
       of the participation will take place within 10 days. The participation
       transferred will be free and clear of any pledge or third party right or
       option of any kind whatsoever. The purchase price will be paid
       simultaneously with the delivery of the participation.

9.5    In the event that it is not possible to establish that the Impasse was
       generated by the contrary vote of one Party, the Party giving the notice
       of Impasse pursuant to Section 9.2 shall formulate to the other Party an
       offer in terms of value attributed to 100% of the Parent. The other Party
       shall, at its discretion, during the 10 days following receipt of such
       offer, have the right to (i) sell to such Party its own participation at
       a price based on the Parent's value indicated in the notice; or (ii)
       counteroffer a higher value for 100% of the Parent on the basis of which
       such Party is prepared to buy the participation of the Party who gave
       notice of the Impasse. In turn, the latter Party shall have the right to
       counteroffer, within the following ten days, higher value for 100% of the
       Parent and the bid auction will continue until and unless one of the
       Parties accepts the value offered by the other Party and agrees to sell
       its participation at the price based on such value.

9.6    The Parties agree that until the Deferred Portion of the Purchase Price
       is paid by Impco in accordance with Section 3.2.4 of the Agreement, the
       provisions of this Section 9 shall be applied coherently.

10.    TERM

10.1   This Shareholders Agreement shall have a Term until 30 September 2007 and
       shall be deemed automatically renewed for further three-year periods
       unless terminated by any of the Parties by giving written notice to the
       other Party at least three months prior to 30 September 2007 or the lapse
       of each three-year period.

10.2   In addition, but without prejudice to the provisions of Clause 10.4
       hereunder, this Shareholders Agreement may be terminated by each Party by
       giving written notice to the other Party in the event that either Party
       ceases to hold a participation equal to 50% of the Parent's capital or in
       the event that either Party commits a material default of its obligations
       hereunder.

10.3   In the event that this Shareholders Agreement is terminated by either
       Party pursuant to Section 10.2 above, the procedure set our in Clause 9.4
       and 9.5 above shall apply, provided that, the defaulting Party shall be
       deemed, for such purposes, as the Party who generated the Impasse and
       that the discount/increase percentage on the offered price shall be equal
       to 15% by way of liquidated damages.

10.4   In the event that the participation in the Parent's capital held by
       either Party becomes lower than 50% but no lower than 2% (the "Minority
       Shareholding") due to the exercise of the options mentioned in the
       recitals, the following provisions shall apply:

       10.4.1  should the Minority Shareholding be 10% or higher of the Parent's
               legal capital, (i) the provisions of Clauses 6 and 7 shall
               continue to apply, and (ii) the Party owning the Minority
               Shareholding shall have the right to designate one member of the
               board of directors and one effective member of the board of
               statutory

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               auditors, and the other Party shall exercise its voting rights to
               procure that the individuals designated by the Party owning the
               Minority Shareholding become members of the board of directors
               and board of statutory auditors, respectively;

       10.4.2  should the Minority Shareholding be less than 10% of the Parent's
               legal capital, (i) the provisions of Clause 6 concerning the
               right of first refusal shall continue to apply only in favour of
               the Party owning the majority of the Parent's legal capital; for
               the avoidance of any doubt, only the Party owning a majority
               participation shall have the right of first refusal (to be
               exercised in accordance with the provisions of Clause 6), and
               only the Party owning the Minority Shareholding shall be under
               the obligation to comply with the provisions of Clause 6 in the
               event it intends to transfer all or any part of the Minority
               Shareholding, and (ii) the provisions of Clause 7 shall continue
               to apply in favour of the Party owning the Minority Shareholding;

       10.4.3  in any case, any further provision of this Shareholders Agreement
               shall terminate.

10.5   In any case, this Shareholders Agreement shall automatically terminate if
       a Party ceases to hold a participation in the Parent for any reason
       whatsoever.

11.    MISCELLANEA

11.1   All the obligations of Costamagna hereunder shall be joint and several.

11.2   Costamagna hereby acknowledge that Impco is listed on an official stock
       exchange and that, as a consequence, it is subject to severe rules in
       relation to release of communications to the market. As a consequence the
       Parties agree that no communication shall be publicly made by either of
       the Parties without the written consent of the other Party. The Parties
       shall use their best efforts to coordinate the respective communications
       to the public. The provisions of this Clause 11.2 shall not apply to any
       disclosure which any of the Parties may be forced to make for the
       purposes of enforcing judicially any of its rights or that is required by
       an order of a competent public authority or to comply with mandatory
       provisions of law, provided that in all such cases the disclosing Party
       shall give the other Party written notice of such disclosure as soon as
       legally possible and will be under an obligation to limit the disclosure
       to the extent strictly necessary for the relevant purposes.

11.3   Without prejudice to the foregoing, the Sellers hereby agree that at any
       moment after the Execution Date they shall not (end shall cause the
       Company not to) make any communication or release concerning the Parent
       and/or the Company, which may have a direct or indirect impact on Impco's
       stock price, whether positive or negative, without the prior consent of
       Impco.

12.    NOTICES

12.1   Any communication or notice in relation to this Shareholders Agreement
       shall be effected in writing and in English language and delivered by
       registered letter with receipt by return mail and, if necessary, sent by
       telegram or fax in advance, and shall take effect from the date in which
       the registered letter is sent.

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12.1   The aforesaid communications or notices shall have to be sent to the
       following addresses:

       12.1.1  If to Impco:

               IMPCO Technologies Inc., 16804, Gridley Place, Cerritos, Ca.,
               U.S.A., Fax no. 0015629248069, attn. Bob Stemmler, with copy to
               Studio Grimaldi e Associati, via del Lauro 9 20121 Milano, Italy,
               attn. Roberto Cappelli, fax no. +390233355200;

       12.1.2  If to the Sellers collectively:

               Mariano Costamagna, c/o Studio Tibaldi Girando, via S. Margherita
               8 Alba (CN) (Italy), fax no. +390173362307, with copy to Avv.
               Marco Di Toro, C_so Stati Uniti 62 10128 Torino (Italy), fax no.
               +39011530159.

12.2   It is understood that any communication sent to the above addresses shall
       be considered as received when effectively delivered to the relevant
       Party. Any change of address shall only be valid if communicated in
       writing to the other Party.

13.    GOVERNING LAW AND JURISDICTION

13.1   This Shareholders Agreement shall be governed by and interpreted in
       accordance with the laws of the Republic of Italy.

13.2   Any dispute in relation to the validity, interpretation, execution or
       performance of this Shareholders Agreement shall be submitted to
       arbitration under the rules of the Amsterdam Chamber of Commerce by three
       arbitrators, fluent in Italian and in English, one of whom will be
       appointed by Impco, one by Costamagna and the third, who will act as
       Chairman, by the first two arbitrators or, in the event of their failure
       to reach an agreement within thirty days of their appointment, in
       accordance with the arbitration rules of the Amsterdam Chamber of
       Commerce. The seat of arbitration shall be Amsterdam.

IN WITNESS WHEREOF, the Parties have executed this Agreement in the place and as
of the date first above written.

Impco Technologies Inc.                     Mariano Costamagna

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

                                            Pier Antonio Costamagna

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

                                            Bruna Giachino

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

                                            Carla Borgogno

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

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                                PLEDGE AGREEMENT

                                     between

(1)    Mr. Mariano Costamagna, born in Narzole, on 15 March 1951, and domiciled
       at Cherasco, Via La Morra, 2, married, in a separation of assets regime;

(2)    Mr. Pier Antonio Costamagna, born in Narzole, on 22 July 1952, and
       domiciled at Cherasco, Via La Morra, 2, married, in a separation of
       assets regime;

(3)    Mrs. Bruna Giachino, born in Cherasco, on 4 November 1956, domiciled at
       Cherasco, Via La Morra, 2, married, in a separation of assets regime;

(4)    Mrs. Carla Borgogno, born in La Morra, on 16 March 1957, domiciled at
       Cherasco, Via La Morra, 2, married, in a separation of assets regime
       (Messrs. Mariano and Pier Antonio Costamagna, Bruna Giachino and Carla
       Borgogno are hereinafter jointly referred to as the "Sellers").

                                       and

(5)    Cititrust S.p.A., a fiduciary company incorporated and operating pursuant
       to the laws of Italy, with registered offices in Milan, Foro Buonaparte,
       16 (hereinafter referred to as the "Cititrust"), acting on behalf of
       Impco Technologies Inc., a company incorporated and existing under the
       laws of State of Delaware U.S.A. with registered offices at 16804,
       Gridley Place, Cerritos, Ca., U.S.A. ("Impco").

(Cititrust and the Sellers hereinafter individually referred to as one "Party",
collectively referred to as the "Parties").

                                    WHEREAS:

(a) Cititrust (on behalf of Impco as beneficiary holder of the Quota) has
       purchased from the Sellers a quota (hereinafter the "Quota") of B.R.C.
       societa a responsabilita limitata having a nominal value of 750,000,00
       euros, representing 50% of the issued and outstanding voting capital.

(b) The purchase price of the Quota was agreed by the parties as follows:

       b1)     a USD Cash Portion equal to USD 12,550,000 (US Dollars twelve
       million five hundred and fifty thousand);

       b2)     a Euro Cash Portion equal to EURO 1,250,000 (Euro one million two
       hundred fifty thousand);

       b3)     a Securities Portion for an amount equivalent to USD 10,000,000
       (US Dollars ten million).

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(c) Cititrust has paid to the Sellers the Euro Cash Portion, the Securities
Portion and an amount of 5,550,000 USD as down payment of the USD Cash Portion.

(d) Cititrust shall pay to the Sellers the balance of the USD Cash Portion, that
is 7,000,000 USD, on or before 30 September 2003.

(e) The Parties have agreed to secure the payment of the balance of USD Cash
Portion in accordance with the terms and conditions set out below.

Now, therefore, the Parties hereto have agreed as follows.

1) OBJECT OF THE AGREEMENT

Cititrust (on behalf of Impco as beneficiary holder of the Quota) hereby
agrees to pledge the Quota to secure the payment to the Sellers of the balance
of the USD Cash Portion equal to 7,000,000 USD.

2) VOTING RIGHTS AND DIVIDENDS

During the period from the date hereof to 30 September 2003 the voting rights
and the right to collect dividends shall pertain to Cititrust.

3) DEFAULT OF PAYMENT

In case that on 30 September 2003 the Sellers have not received from Cititrust
the payment of 7,000,000 USD, equal to the balance of USD Cash Portion, they
will exercise all the voting rights relating to the Quota and will collects
dividends: in that case the Sellers will also be entitled to set according with
the articles 2797 and 2480 of the Italian Civil Code.

4) INDIVISIBILITY OF THE PLEDGE

The Pledge as above set up shall be indivisible and will secure the whole credit
of the Sellers for the balance due to them the USD Cash Portion.

5) SHAREHOLDERS' BOOK

The pledge as above set up shall be recorded in the shareholders' ledger
concurrently with the signing of this agreement.

Milano, ___ January 2003

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                                                                    EXHIBIT 10.3

                                Lock-Up Agreement

                                     [Date]

___________________________________

___________________________________

       Re:  IMPCO Technologies, Inc./B.R.C. Societa a Responsabilita Limitata

Ladies and Gentlemen:

       The undersigned has entered into that certain Option Agreement dated 3
October, 2002 (the "Agreement"), by and among the Sellers and IMPCO
Technologies, Inc. ("IMPCO"), providing for the granting of an option for the
acquisition by IMPCO of a 50% interest in BRC S.r.l. pursuant to the terms and
conditions of the Agreement and of the Sale and Purchase Agreement. The terms
and conditions of the Lock-Up Agreement are defined in Section 1.4 and its
execution is required pursuant to Section 2.2.4 of the Agreement and,
accordingly, this Lock-Up Agreement is incorporated in its entirety into the
Agreement. Unless defined otherwise in this Lock-Up Agreement, all defined terms
set forth herein shall have the meaning ascribed to them in the Agreement.

       In consideration of the sale and transfer of the Quota to IMPCO, and of
other good and valuable consideration the receipt and sufficiency of which is
hereby acknowledged, the undersigned agrees that, the undersigned will not,
except as set for on Schedule A attached hereto and incorporated herein by this
reference, offer, sell, contract to sell, pledge, grant any option to purchase,
make any short sale or otherwise dispose of any Lock-Up IMPCO Shares, or any
options or warrants to purchase any shares of Lock-Up IMPCO Shares, or any
securities convertible into, exchangeable for or that represent the right to
receive shares of Lock-Up IMPCO Sharesowned directly by the undersigned
(including holding as a custodian) or with respect to which the undersigned has
beneficial ownership within the rules and regulations of the Securities and
Exchange Commission.

       The foregoing restriction is expressly agreed to preclude the undersigned
from engaging in any hedging or other transaction which is designed to or which
reasonably could be expected to lead to or result in a sale or disposition of
the Lock-Up IMPCO Shares even if such Shares would be disposed of by someone
other than the undersigned. Such prohibited hedging or other transactions would
include without limitation any short sale or any sale or grant of any right
(including without limitation any put or call option) with respect to any of the
Lock-Up IMPCO Shares or with respect to any security that includes, relates to,
or derives any significant part of its value from such Shares.

       Notwithstanding the foregoing, the undersigned may transfer the Lock-Up
IMPCO Shares (i) in case of death, by way of either testamentary provisions or
mandatory provisions of law, (ii) as a bona fide gift or gifts, provided that
the donee or donees thereof agree to be bound in writing by the restrictions set
forth herein, (iii) to any trust for the direct or indirect benefit of the
undersigned or the immediate family of the undersigned, provided that the
trustee of the trust agrees to be bound in writing by the restrictions set forth
herein, and provided further that any such transfer shall not involve a
disposition for value, or (iv) with the prior written consent of IMPCO. For
purposes of this Lock-Up Agreement, "immediate family" shall mean any
relationship by blood, marriage or adoption, not more remote than first cousin.
The undersigned now has, and, except as contemplated by clause (i), (ii), (iii)
or (iv) above, for the duration of this Lock-Up Agreement will have, good and
marketable title to the Lock-Up IMPCO Shares, free and clear of all liens,
encumbrances, and claims whatsoever. The undersigned also agrees and consents to
the entry of stop transfer instructions with IMPCO's transfer agent and
registrar against the transfer of the Lock-Up IMPCO Shares except in compliance
with the foregoing restrictions.

       The undersigned understands that IMPCO and the Sellers are relying upon
this Lock-Up Agreement in connection with the sale and transfer of the Quota
pursuant to the terms and conditions of the Agreement. The

IMPCO Technologies, Inc./BRC
Lock-Up Agreement
la-598677

                                        1

<PAGE>

undersigned further understands that this Lock-Up Agreement is irrevocable and
shall be binding upon the undersigned's heirs, legal representatives,
successors, and assigns.

                                            Very truly yours,

                                            ------------------------------------
                                            Exact Name of Shareholder

                                            ------------------------------------
                                            Authorized Signature

                                            ------------------------------------
                                            Title

IMPCO Technologies, Inc./BRC
Lock-Up Agreement
la-598677

                                        2

<PAGE>

                                   Schedule A

              Restrictive Periods for Sale of Lock-Up IMPCO Shares

The undersigned, pursuant to the terms of the Lock-up Agreement, agrees to
restrict the sale of the Lock-Up IMPCO Shares in accordance with the following
timetable:

<TABLE>
<CAPTION>
                   Time Period                      Percentage of IMPCO Shares Eligible for Sale
    <S>                                            <C>
    From Execution Date through 1 August 2004              0% of the Lock-Up IMPCO Shares
            Commencing 1 August 2004                      16.7% of the Lock-Up IMPCO Shares
           Commencing 1 February 2004              an additional 27.7% of the Lock-Up IMPCO Shares
            Commencing 1 August 2005               an additional 27.7% of the Lock-Up IMPCO Shares
           Commencing 1 February 2006              an additional 27.9% of the Lock-Up IMPCO Shares
</TABLE>

IMPCO Technologies, Inc./BRC
Lock-Up Agreement
la-598677

                                        3

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