The robot at the end is massive.... Optimus jumped on it.... Then when you see that car jumping out of the building, it looks as if something is chasing it from behind. Looks like it is going to be one hot movie...
Characters
Autobots:
Prime - Peterbilt truck
Bumblebee - 5th generation Camaro
Ratchet - Hummer H2
Ironhide - GMC Topkick
Arcee - seperates into 3 motorcycles
Jetfire - SR71 Blackbird
"The Twins" - Chevy Beat & Chevy Trax
Sideswipe - Chevy Corvette
Jolt - Chevy Volt
Wheelie - RC car
Decepticons:
Megatron - Cybertronian tank
Starscream - F22 Raptor
Soundwave - Chevy Silverado
Devastator - formed by the Constructicons
Barricade - Saleen S281
Constructicons - Bonecrusher (bulldozer), Scavenger (mining excavator), Scrapper (front-load shovel), Hook (crane), Long Haul (dump truck), Mixmaster (concrete mixer)
There is also an Audi R8 but they didn't mention which Decepticon would take its shape.