It's only for a breif second but about half way through the video there is a shot where you can see the back half of a orange '07 Avalanche in the background.
Here's some screen shots of it...
http://www.cheersandgears.com/forums/index.php?s=1debd058ece490d73cf58c8c8731b5e0&showtopic=238&st=40&p=17445&#entry17445
Here's the link to the video...
http://gmtv.feedroom.com/iframeset.jsp?ord=576537