There will indeed be a Zeta platform GTO, it's exact debut date is not set. Some rumors have it standard with a 5.3 aluminum LS2 with 400 h.p. and optional with a 427c.i./425-450 h.p. LS2, although this could actually be a 6 liter instead. The same source says a Judge will appear 6-9 months later with a version of the Z06 engine. All versions are said to be 250-300lbs. lighter than the current car. At that time, the 4 dr. Grand Prix may become known as LeMans. The Grand Prix nomenclature may only remain on a 2 dr. sport luxury rear drive coupe with big power numbers!