Wow, how prescient were we to know to repeat the prescience of High Performance Pontiac magazine? Hmm, probably about as prescient as they were to have posted on the new 2009 Pontiac G8 GXP to begin with. But we digress as we're now officially able to tell you all the details on "the flagship" of Pontiac's GXP performance series, the G8 GXP. So what makes this four-door the tip-top of the Pontiac pinnacle of performance? How about the 6.2-liter LS3 engine from the 2008 Corvette? No, that doesn't do it for you? How about a manual transmission? Yeah, we thought so. Hit the jump for the full release and all the details.