The Porsche 911 RSR

The 911 Carrera RS was born in 1972. The 911 RS was a lightweight, more powerful, more racy 911. In very early 1973, the FIA certified this street legal 911 RS for the Group 4 GT racing class, and only 5 days later, 2 911 RSR prototypes appeared at the 24 Hours of Daytona. The winner on Sunday morning? One of the RSR's, of course. As 1973 went on, the RSR's took the following victories:

Targa Florio
Daytona 24
Sebring 12
European GT Championship
IMSA Championship
SCCA Trans-Am GT Championship

The 911 Carrera RSR was an all-out, full race, upgraded 911 RS. It carried a normally-aspirated 2.8L flat six that produced over 300 horsepower. 49 of these were built for racing. In the latter part of 1973, the engine was enlarged to 3.0 Liters, and power was more up near 320 Horsepower. The winning continued, as the RSR's were practically as untouchable as the previous 917's had been. By 1974, all the 911s wore the newer body design set forth by safety laws, and the street 911 Turbo appeared. And, as you would expect, a TURBO RSR did, too. This Turbo RSR would be the test bed for the booming 934 sport racer.

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