He explains that the mistake happened: “After we captured the footage from both versions, some of the footage of the PlayStation 3 version of the game was incorrectly placed in the bin for the Xbox 360 footage.”
Satterfield also mentions he is upset with the critisism they’ve been receiving on the forums stating they are biased against the PLAYSTATION 3 as well. There is a full interview at the link.
[Joystiq interview: GameTrailers EIC sets record straight on GRID controversy]