The GT2 is best described as the race variant of the Turbo. For weight saving reasons the 4WD was deleted. The interior is similar to the Carrera RS. The fenders of the Turbo have been cut and replaced with bolt-on plastic pieces in order to accommodate large racing tires and to ease the repair of damages to the fenders often occurring in racing.
Until 1997, the GT2 had almost the same engine as the Turbo, but delivering 430 hp (DIN). In the last year (model year 1998) output was raised to 450 hp (DIN) and twin ignition was added.
The many racing variants have different engine set-ups depending on the applicable racing series. Power output came as high as 600 bph in a "Evo" version designed for the GT1-series, which was ultimately replaced by the mid-engine 911 GT1.
In Porsche terms, 'Speedster' stands for a Convertible with lowered roof and windshield and a rather spartanic interior.
In contrast to the G-model and the 964, Porsche never officially released a 993 Speedster. However, two were built by the factory: a dark green Speedster equipped with Tiptronic S and 17 inch wheels for Ferdinand Alexander Porsche (his 60th anniversary) in 1995 and another wide-body, silver Speedster with manual transmission and 18 inch wheels for American TV star Jerry Seinfeld in 1998.
After the 3.3 liter G-model Turbo convertible (1987-89), Porsche never officially offered an air-cooled Turbo convertible again. However, in 1995 14 993 Turbo Cabriolets were sold before the introduction of the 993 Turbo coupe. They featured the 360 hp (DIN) single-turbo engine of the 964 Turbo 3.6, a 5-speed manual transmission and the wing of the 964 Turbo 3.6. This required a premium of DM 89,500 (or plus 62%) over the standard 993 Cabriolet's price.