i am the second owner of my xfire and my 5 star dealership has treated me great i have no complaints so far and they have addressed every warranty issue
i have had. and i never had to pay for a rental car, they always paid for them. as far as parts, that's a different story, they always had to order the parts in.
i can see that they wouldn't want the cost of overhead, stocking a bunch of parts for a limited production car.

1: trans shift = first tried to rebuild then replaced the trans.
2: replaced the head lights due to fogging.
3: heated seat repairers 2 times.
4: replaced the drive line due to vibration.
5: replaced the stereo due to i couldn't see the display in the sun.
6: replaced the turn signal/high beam switch it failed.
7: replaced the driver door window regulator it was making a clunk when it fully went down.
8: repaired the blend door motor the fresh air door wouldn't open and the windshield would fog up really bad on the cold days.
9: preformed the tsb on the rear hatch for the hatch lock hose.
10: replaced the head liner due to it falling down at the back by the rear hatch.
11: eng cooling fan recall.
12: rebuilt drivers seat slide assembly, Fwd and back motor bushing failed.
13: next, sending it in for the 3 time for the heated seats.

and after all this i still love the car, call me silly.