well, you gotta think, it was their development car to try new parts on.
It's been dyno'ed, and down the track a fare share of times. All parts were professionally installed & tuned, but it's still been used as essentially a "test dummy"
Plus, the factory warranty has been more than likely voided either because the engine has been messed with (cams, and computer tuning) and the tranny was altered (torque converter).