Optimus Prime - Peterbuilt Long-nose semi
Jazz - Pontiac Solstice
Ratchet - Hummer H2 (Rescue Vehicle)
Ironhide - GMC Topkick Pickup
Bumblebee - '76/'09 Chevy Camaro

Barricade - Saleen Mustang (Police Interceptor)
Starscream - F-22 Raptor
Bonecrusher - Buffalo H EOD Transport
Blackout - MH-53 Pave Low III
Devastator - M1 Abrams with anti-mine plow (badly modeled though, angles were all off)
Frenzy - Stereo/CD Player/cell phone
Scorponok - Didn't transform, was a mechanical scorpion
Megatron - listed as a "futuristic Cybertronian jet"