964 was Porsche’s internal designation for Carrera 2 and Carrera 4 911s built from 1989 to 1994. These were available as a coupe, cabriolet or targa. The 964 suspension used coil springs in place of torsion bars. ABS brakes and power steering were standard. Four-wheel drive and the Tiptronic transmission were available as options.
The four-wheel drive Carrera 4 was introduced in 1989. The rear drive only Carrera 2 and the Turbo followed in 1990. The lightweight rear drive only Carrera RS was made in 1992 and was based on the 911 Carrera Cup car. To commemorate the launch of the 911 in 1963 Porsche introduced the 30th Anniversary model with the Turbo body and four-wheel drive. The 964 was replaced by the 993.
The 993 was the internal designation for 911s built from 1994 to 1998 and was the last air-cooled Porsche and differed visually and technically from the 964. The front and rear bumper bars were smoother and the wheel arches had wider flares. Power was increased with the VarioRam induction system. Lift off oversteer was tamed by the new multi-link rear suspension with wishbones and coil springs.
The 993 was the first Porsche to have a six speed transmission. The Carrera, Carrera S, Cabriolet, and Targa models were also available with the Tiptronic automatic transmission. The lightweight Carrera RS variant was built between 1995 and 1996. The 993 Turbo was introduced in 1995 and the Turbo S in 1997.