The Porsche 908/3 was designed specifically for the Nurburgring Nordschleife and Targa Florio circuits, where the heavier 917K was less suitable. With a curb weight of about 660 kg, including the driver, and a power output of about 350 hp from the opposed eight-cylinder engine, the power-to-weight ratio was about 540 hp per ton. 908/3 achieved great success, winning both the Targa Florio and the 1000 km of the Nurburgring, although his legacy was partly overshadowed by the famous victory of the 917K in Le Mans in 1971. Only about ten examples were built, making it one of the rarest Porsche prototypes.

The modification includes both wing-shaped (1971) and wingless (1970) configurations, with many color options, additional aerodynamic body kits and other details. The jbeam model was created from scratch, so collisions at high speeds may not look very realistic.