I'll add you next time I'm on. I'm only at level 17 A-spec and 21 B-spec. I'm starting to find it a little tricky with the standard controller, it's not precice enough, so might have to get a steering wheel soonish.
I don't think I've seen any Pontiacs yet, got myself a Hemi 'cuda last night that I saw in the used section. I'm guessing that's where the pontiacs will turn up too, as there are a Pontiac GTO 5.7 Coupe ‘04, Pontiac Solstice Coupe Concept ‘02, Pontiac Sunfire GXP Concept ‘02, Pontiac Tempest Le Mans GTO ‘64, and a Pontiac Vibe GT ‘03.
The closest 2 cars to my car are the '69 Camaro SS and the '70 Chevelle SS. I've got both of them, I just need to buy a couple of Dodges to get them painted the right colour.
Great game though.