Continuing a tradition that began with the 944 Turbo Cup during the mid-1980's, Porsche produced an entry-level 993 racing car intended for use in the firm's one-make Supercup championship. 993 Cup cars were current for the four seasons between 1994 and 1997, the first versions (left) having served as useful testbeds for the Carrera RS road car introduced in early 1995. Later examples more closely resembled the Club Sport RS with its visually extreme aero devices, as depicted below. All were equipped with competition-spec Bilstein shocks, the ride-height and anti-roll bars having been fully adjustable.

The power steering was junked, air-jacks were installed and new three-piece alloy and magnesium Speedline Supercup wheels fitted. Like the subsequent RS road car, the Cup was powered by an enlarged 3.8-litre Variocam engine although this version was designated Typ M64/70 and featured a number of interesting differences. Displacement was unchanged at 3746cc, but there was new twin spark ignition, a hike in the compression ratio (from 11.3 to 11.5:1) and Bosch Motronic M2.10 multi-point engine management. There was a reinforced Typ G50/30 six-speed gearbox linked to a competition clutch, a straight-through racing exhaust and two-stage resonance air intakes. Boasting 310bhp at 6200rpm and weighing in 270kg lighter than the stock Carrera Coupe, this was enough for 172mph flat out and 0-60 in just 4.8 seconds. Side and rear windows were typically plastic, the windshield itself having been of thinner glass than normal. Fastening pins held the lightweight front lid in place, the only other identifiable difference being a solitary windscreen wiper. The cabin was equipped with just a roll-cage, fire extinguishing system and a solitary Recaro racing seat with six-point harness.