Based on the already primal 997.2 GT3, the RS gets another 15 hp from the 3.8-liter flat-six for a total...
(997) 911 GT3 RS Pictures
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Built to homologate the 2011 GT3 RSR racecar, the RS 4.0 is fitted with the 3996cc engine which raises power output...
Geneva Motor Show, 6-7 March 2007: New Porsche 911 GT3 RS on display (Type 997 Gen.1) Snapped at the Geneva...
