Compared to a standard 911S, the Carrera 2.7 RS had a larger engine (2,687 cc) developing 210 horsepower with Bosch (Kugelfischer) mechanical fuel injection, revised and stiffened suspension, a "ducktail" rear spoiler, larger brakes, wider rear wheels and rear fenders, to fit 185/70VR15 & 215/60VR15 Pirelli Cinturato CN36 tyres.