A G8 GXP version was shown at the
New York International Auto Show in March 2008 with a 6.2-liter
[13]402 hp (300 kW) V8 from the
Chevrolet Corvette and a six-speed manual transmission.
[17] The production version of the GXP was more powerful with its
LS3 V8 producing 415 hp (309 kW) and 415 lb·ft (563 N·m) of torque. Both the six-speed
Tremec TR-6060 manual transmission and the six-speed automatic transmission were available. The GXP reached 60 mph (97 km/h) from a standstill in 4.5 seconds, a quarter-mile time of 13.0 seconds at 109.6 mph (176.4 km/h), and 0.90
g (8.8 m/s2) of lateral acceleration on a skidpad.
[18]
The GXP has an upgraded,
Nürburgring-tuned FE3 suspension package, as well as larger, ventilated
Brembo disc brakes. It also features a unique front bumper cover and a rear (non-functional) diffuser to differentiate it from the standard Sedan and GT models.
Total sales of the Pontiac G8 GXP were 1,829 units.
[19] Only a limited production of 6 G8 GXP was available in Canada.
