From 1957 to 1973 the Puch 500 was built in the Graz plant with great success (almost 60,000 sold), using the Fiat 500 body but Steyr mechanics (to varying degrees - but always with the Austrian opposed twin engine); important versions were the 650 TR sports model and the 700 C microvan. From 1973 to 1975 some few Fiat 126 were equipped with the boxer twin engine for the Austrian market.