Yea they say the G8's are the new gps... The V6's are over 300hp if im not mistakin. Maybe the DOHC V6 - 250hpGP GT, G8V6 - 305hpGTP, an the G8 GT-365GP gxp versions or somethin if they still carried the Grand prix name that is. Then again wouldn they have to be rwd to fit in the LS2's without overheating an such.