Now, technically, it's not the most powerful Pontiac ever, as that title belongs to the G8 SLP Firehawk; a super-sedan that boasted a 500-horsepower supercharged V8. The GXP definitely is ...

The most exciting upgrade featured on the GTP in 1997 was its supercharger ... and the short lived G8 also with a GXP trim. In 2007, the Pontiac Solstice GXP increased performance from 177 ...

A dealership employee somewhere has posted a pic of GM's inventory controls website in which the engine option for the 2009 Pontiac G8 GXP is revealed to be none other than the LS3 6.2L V8.

but for 2006 the top model won't be supercharged at all. During last month's California International Auto Show in Anaheim, California, Pontiac unexpectedly announced at that it will produce a ...