These days every modern 911 road car is turbocharged, but that wasn’t the case in the ’70s.
Porsche was exploring the use of turbo technology with their racecars in the late ’60s and by ’72 they were developing a turbocharged 911. Originally, they were doing this to comply with homologation regulations similar to the ’73 RS. The FIA announced that Group 4 and 5 cars had to be based on production cars available to the general public. For ’76, the rules got even tighter, with the manufacturer having to build 400 cars within a 24-month period.
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