WSC60 Porsche 906 Carrera
3d Model Conversion by: Mac Ten Engine 901/20 - Weber carbureted version Decisions by the FIA (CSI) often played a decisive role in shaping race cars, and the 906 is no exception to that. During 1964, Porsche was already planning a second production run of the successful box-framed 904 and stocking up parts for it, already announcing that the model would be called Carrera GTS 6 because it would be fitted with the Type 901/20 magnesium alloy flat-six-engine that had not been ready in time for the first series of the 904. In December 1964, however, the FIA decided to announce a new class called Grand Tourisme Sport (GTS, better known as Group 4) with a reduced minimum production requirement of 50 units, while at the same time increasing the GT homologation requirement from 100 to 500 units. This coincided with the arrival of a grandson of Ferdinand Porsche in the company: Ferdinand Piëch had just finished his mechanical engineering degree at ETH Zürich with a master thesis on developing a Formula One engine. After he joined the testing and racing department as a testing engineer in 1964, he soon engaged in a power struggle against Fritz Huschke von Hanstein over the 904 GTS 6 that