Porsche Data Guide

Late air-cooled 911s (1989-1998)
With the 1989 models the 911 changed its internal type number to 964 (and this is how these cars are known), The new 911 models for the 1994 model year changed the internal type number again, this time to 993. It is worth noting that Porsche have always referred to these later models as 911s, with no reference to the type numbers in marketing literature.

Comments
964s came originally only in the coupe bodystyle. These 911s marked a significant advance on specification compared to the earlier cars, having coil spring suspension, ABS, redesigned interiors and power steering.
The Tiptronic automatic gearbox knocks about one second off the acceleration times to 62mph for these cars, but does offer the convenience of full automatic driving. The Tiptronic also has a stick shift ‘tip’ mode that allows you to change gear manually (but again without needing a clutch). The later Tiptronic S offers steering wheel buttons to do this.
The 964 Carrera RS is among the most sought after of the modern era air-cooled 911s, with prices for good cars ranging between £30-40,000. It is hard work to drive a 964 RS as an everyday car as the suspension is so firm. 
The regular Carrera 4 and 2 (the 4 was introduced first) have a reputation for oil leaks and flywheel problems, so buying needs to be approached with care. Check out the buyers’ guide for the best models and fixes.
The 993 model range was split into two versions. From the launch in late 1993 to the end of the 1995 model year, the car was powered by a 272bhp 3.6-litre engine. For the 1996 model year (with right hand drive deliveries starting around September 1995), the cars were powered by the 285bhp 3.6-litre engine with ‘Varioram’ variable intake manifolds. These gave greater top end power and better mid-range torque.
The 993 comes in Coupe, Targa and Cabriolet body styles and all have their advantages. The Cabriolet sells most strongly in the Springtime and the bargains are to be had in Autumn.
The new Targa is very popular and often comes with Tiptronic.
The 993 RS is, like the 964 RS, much sought after and carries a premium on the regular Carrera. The RS and the GT2 can be driven on the roads but their suspension is very firm and the equipment minimal.
The Turbo took a major step away from the previous rear-wheel drive single turbo version. The new cars have twin turbos, all-wheel drive and sophisticated driver aids.
The wide-body Carreras (the S and the 4S, plus the Turbo) continued in production until virtually the end of the 1998 model year (alongside the new 996).

Carrera 2 Cabriolet (964)	Carrera 2 (964)
911 Carrera RS (964)	911 Turbo (964 model)
911 Turbo S (964 model)	911 Carrera 2 (993)
911 Carrera Cabriolet (993)	911 GT2 (993)
911 Carrera RS (993)	911 Carrera Targa (993)
911 Turbo (993)	911 Carrera 4S

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