i posted this on another thread. sounds like vette will probably be in an add lumped in with the other new models since it says "umbrella brand campaign".
got this info from www.superbowl-ads.com, gm ads for game.
a:60 cadillac epic with mutiple models, special effects and once again use a led zeppelin tune. Cadillac is the official car of the game.
And a pair of: 30 spots for chevrolet, one in q1, one in q2 for its "an american revolution" umbrella brand campaign.