The 2009 lineup saw the debut of the G8 GXP, featuring a 6.2-liter V8 engine producing 415 horsepower. This addition positioned the G8 as a formidable contender in the performance sedan segment.

Built on GM’s latest version of its global rear-wheel drive architecture that underpins the 2010 Camaro, the 2009 G8 lineup includes three sedans starting with the base model that comes with a ...

It sits between the base 256-horsepower Pontiac G8 and the higher-performance Pontiac G8 GXP, which has a 6.2-liter LS3 small-block V8 generating 415 horsepower and 415 lb-ft of torque -- enough ...