Porsche 911 Carrera RSR Turbo, Paul Ricard Test (1973)
The body of the first experimental chassis, 9113600576-R5, was modified from a 911 Carrera RSR 2.8 and lacked a sophisticated aerodynamic package.The chassis was equipped with a 911/76 engine producing approximately 500 hp.In this configuration, the car weighed up to 750 kg.
The next chassis (9114609016-R9), based on the accumulated information, had some differences: a new body with a carefully designed aerodynamic package and a 911/78 engine producing 450 hp. This resulted in a weight increase to 820 kg. Testing took place at the Paul Ricard circuit throughout almost the entire autumn of 1973.