The Porsche 997 GT3 RS is one of the most raw, track-focused 911s ever built. It was produced in two main generations: the 997.1 (3.6-liter, 415 hp) and the 997.2 (3.8-liter, 444 hp). The ultimate evolution, the GT3 RS 4.0, delivered 493 hp from the largest naturally aspirated flat-six Porsche had ever put in a road car. Every RS version featured lighter weight, wider rear track, stiffer suspension, and aggressive aero with the signature fixed rear wing. Performance ranged from 0-60 mph in about