I thought Transformers was verging on the ideal of Hollywood-model filming. I enjoyed it thoroughly.
That said, the rampant pro-Americanism in it was a bit annoying (if ignorable), and looking at the OP again:
AUTOBOTS
OPTIMUS PRIME: The Autobots' leader - alternate form: Peterbilt truck (see photo).
IRONHIDE: Weapons specialist - GMC Topkick.
RATCHET: Medic - Hummer H2.
BUMBLEBEE: Friend and mode of transportation for Sam Witwicky (Shia LaBeouf) - 2010 Chevorlet Camaro.
ARCEE: A female Autobot - motorcycle.
SIDESWIPE: A Lamborghini in the toy line, here he transforms into a silver Corvette Stingray concept car.
JETFIRE: An older Decepticon who switches sides - SR71 Blackbird jet.
JOLT: The original toy was a Decepticon, but in the movie he's a good guy - Chevrolet Volt plug-in hybrid.
SKID & MUDFLAP: a.k.a. "The Twins" - Chevrolet Beat and Trax concept cars.
DECEPTICONS
STARSCREAM: Formerly Megatron's second in command, he escaped at the end of the first movie (see photo); F-22 Raptor jet.
SCORPONOK: The mechanical scorpion that attacked the American troops in the desert.
THE FALLEN: One of the original Transformers, he's called "the most elemental bad guy" by the screenwriters.
SIDEWAYS: The Audi R8 seen crashing through a building in the trailer.
SOUNDWAVE: A cassette player in the original toys; his alternate mode will be a communications satellite.
RAVAGE: A four-legged, cat-like robot (see photo).
THE DOCTOR: A spider-like crawling robot.
WHEELIE: A small, radio-controlled truck.
DEMOLISHER: One of the Constructicons that transform into construction vehicles.
DEVASTATOR: A giant robot formed by the Constructicons joining together; individually, they are: Scavenger, Scrapper, Hightower, Longhaul, Rampage, Overload and Mixmaster.
All the autobots are American cars, even the one that used to be a Lamborghini. I hope there's no sappy "dedicated to the workers in America's automobile companies" or something at the end.