Hi Suv!
I found from IMCDB this information posted by thestig8:
http://www.imcdb.org/movie_1399103-Transformers--Dark-of-the-Moon.html
"Car information:
Autobots:
2011 Camaro: Bumblebee
2011 Ferrari 458 Italia: Dino
2011 Mercedes E550: Que (Wheeljack)
Many different NASCAR Stock Cars: The Wreckers
Stingray Convertible Concept: Sideswipe
Otherwise Optimus Prime, Ironhide, Ratchet, and Wheelie go back to their old forms.
Decepticons:
2011 Mercedes SLS AMG: Soundwave
Rosenbauer Panther Fire truck: Sentinel Prime
Otherwise all other Decepticons are their old forms.
Non-robot cars
A 1934? Delahaye
an Old Bugatti Type 35
A blue 1953? Cadillac Eldorado Convertible
Random cars in a collection. Will have to sort them out on the DVD
Datsun 510: Act's as Sam's car while Bumblebee is out to save the world
Chevrolet Surburban LTZs that are used by guess who? Sector 7 of course.
Ram 1500s that are used by NASA
Maybach Landaulet that is owned by Agent Simmons
Another Maybach 62, and an Aston Martin Vantage owned by Patrick Dempsey's character
2 Cadillac XLRs. One is shortly seen in Chicago on fire, and then one is seen during the fight at the end.
Chrysler Concorde on fire
Hyundai Accent on fire.
Jaguar S-Type (I think) on fire
And there's a fragment of a new Chevrolet Aveo bumper on the ground in Chicago. I don't know if that should be listed."