In 1986 the Porsche Turbo Cup racing series began, featuring 40 944 Turbos. However, from 1990 the 944 was replaced with the 964 Carrera 2 as the base car and it was called the Carrera Cup, supporting larger racing events. These events were usually held in Germany; the cars were much lighter than the road cars and also had slightly more power (265bhp) than the road car. The dual-mass flywheel was deleted, while the catalytic converter and ABS brakes were retained. A roll rage was fitted as well as a quicker steering ratio. The suspension and brakes were uprated and the car tipped the scales at only 1,120kg. 50 Carrera Cup cars were produced, of which 40 were sold to customers at DM123,000, only DM20,000 more than a standard Carrera 2. These cars were developed by Porsche’s Weissach racing department.
In 1992, the Carrera Cup was based on the road-going Carrera RS models. The combination of 275bhp and 1,120kg lead to a small improvement in performance, with top speed at 173mph.
The Carrera Cup was renamed the Supercup in 1993. Apart from forming this single-make race series, these Cup cars were also successful in several endurance races. Roland Kussmaul, a project manager at Porsche, started developing the 993 Cup cars in May 1993 to be ready for the next year’s season. It rode a full 70mm lower than the production cars.