Lot #314 - Pontiac always maintained its status as GM's excitement division by consistently coming up with more potent, muscular versions of their already sporty family cars. For 2004, the latest pumped-up Pontiac was the Bonneville GXP. This 2004 Pontiac Bonneville GXP is powered by a Northstar 4.6-liter V8 engine rated at 275hp with an automatic transmission. GM only produced 2,420 GXP models in 2004 and given it was only a 2-year model option, not many are left. Has an accident-free CARFAX.