2007 Pontiac Grand Prix GXP 4dr Sedan (5.3L 8cyl 4A)
Purchased a very sleek, stealthy black 2007 Grand Prix GXP in 2/07, new. At 500 miles, transmission began to fail. Dealer stated "no problem found". At 3,000 miles, dealer tried to repair tranny, then had to replace tranny entirely. Still does not run correctly. Also, the only tires which fit rear wheel are Bridgestone Potenza. No one else manufactures 225/50/18's. So far, 3 defective tires, 4 alignments, 12 force variance balances...steering wheel still shudders, and there's excessive tramlining. Car is pretty..but that's all. Nearly undrivable. I've filed for Lemon Law repurchase, at 3,500 miles.
Heads-up display, very nice LS-4 engine (too bad it's mated to a power train which falls apart!). Seats are comfortable.
GM should build a car that can actually be driven. Put money into engineering, not into advertising. This is a "top tier" vehicle for the Grand Prix model...and it's spent 22 days in service in the last month, alone. Shame on GM for passing off their trash on the unsuspecting consumer!