The significantly lighter auto body, with a much more tightly tuned chassis, wider wheel alignment, more coasting and lighter-weight interior fittings, not only improved the speed and braking performance but also created a more balanced driving experience overall.
Naturally, these Porsches did not yet feature all the same comforts as the models from the ’80s and ’90s, such as ABS and power steering – they were equipped in a fairly minimal way.
Our goal was to create a similar vehicle concept, combined with the great leap forward in technology represented by the Porsche 911 model 964 that was manufactured starting in 1990.
The semitrailing rear axle arms had been modified, and the shortened lever arm was more similar to the configuration found in Porsche GT sports cars of the 1970s and ’80s, like the RSR and 935 or 930 turbo types. In addition, it was the first time that very precise power steering and an ABS braking system were used.
Starting with this model year, though, there was also an enormous increase in weight. While the fully equipped 911 models from 1971, like the 911 S, weighed much less – 1025 kg for the 911 S and just 860 kg for the lighter ST versions – the Porsche 964 models tipped the scales at 1,350 kg.
On the other hand, the models featured an engine with a 3.6-liter capacity, which allowed them to reach 250 HP at a comparatively low 6,100 rpm and a solid torque of 310 Nm at just 4,800 rpm and higher. Thus the basic 964 engine already offers the same performance that the older 911 ST racing models achieved after extensive body-shop tuning.
To summarize all of these parameters: combining the air-cooled 964 and its advanced technology with the detailed look of the 911 ST, while taking measures to reduce the weight without losing all of the comfort, produces the 911ST-R! It is a more modern interpretation of the 1971 911 ST that was so successful in the area of motor sports.