I'm sure this video will be taken down relatively soon because the game isn't out yet, but if it's still there when you read this post, cool.
http://www.youtube.com/watch?v=BdyiPwXAGkA


At 00:35 he gets in a "Sabre" which looks suspiciously like an Oldsmobile Cutlass.

Also in this screenshot from one of my videogame magazines, we have what looks like an Oldsmobile 442.