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  1. Opel GT Group 4 Race Car

    Racers Forum
    Hi I would like to transform my Rally-Prepared GT 1900 into a Group 4 RaceCar! (In order with Apendix K for Historic Racing in Europe). Due to the fact that I do not have much time to go Rallying because of to much Circuit Racing. :D I am searching for Information on Period Group 4 OPEL-GT's...
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