You should all know who this guy (or car) is. He's Bumblebee, one of the Autobot heroes from the blockbuster movie, Transformers, and it's sequel, Revenge of the Fallen.
Bumblebee is an Autobot fromt the planet Cybetron. He and his Autobot partners and leader, Optimus Prime have been assigned to defend Earth from the Decepticons and their leader, Megatron. He was, bought by Sam Witwicky as his "first car". In this scene from this first Transformers, he effectively destroys every other car in the car park so Sam has to buy him, as Bumblebee was assigned as Sam's protector. This was because Sam had a pair of glasses (which belonged to his grandfather) that contained coordinates to the location of the AllSpark, which the Decepticons wanted to wipe out the human race. At this point he took the shape of a 1976 Chevrolet Camaro.
Later on in the first movie he changed to become the same car, but the 2010 version. Before the first movie, his vocal processor was damaged and now he has to find other ways to speak (eg. picking up radio broadcasts etc.). However, he briefly speaks at the end of the first film, saying two lines.
Bumblebee is my favourite character in the whole series because he consistently displays emotions far greater than the others(some of which are a bit exagerrated), and, because he can't speak, it shows that the bond between him and Sam goes beyond words.
Anyway, enough nerd rambling. This Bumblebee is the '76 Camaro.