overall at least 150 lbs lighter, 400 hp supercharged, modest aero, more aggressive suspension setup, robust cooling...
2 variants, a street version and a track-oriented but still street legal version... track variant would have proper diff, harness bar, aggressive pads and fluids, and pushes the limit on weight reduction and aero...
it is the 911GT3 strategy... these would be akin to 911GT3 and 911GT3RS
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