The "X" stood for experimental, and was chosen to represent a class of teams that featured exaggerated body modifications ... by the G8 a few years later, which both offered a GXP trim.

After all, everyone knows that the best Pontiacs get a GXP designation now, and we hope that this car's presence is an indicator that the General is looking to add a range-topper to the G8 lineup ...

According to Jalop's new reporter, Der Auto Inshiderfahvenberger, the GXP ran around the 'Ring in 8:30 -- a mere two seconds off the E39 M5's time. Skip to main content ...

Prices shown for the used 2009 Pontiac G8 Sedan 4D GXP with NaN miles are what people paid to buy this vehicle or what people received when trading in this vehicle at a dealer. Edit options.