I say it's the Ford Falcon XB GT on Auriga Proving Grounds, my first actual car and map. But the first car I tried and really played with a bit was the Honda Accord Hatchback. Fun little car to toss around and obliterate.
This here clunker is my getaway car.
Got the goodies, but I think the coppers have caught up to the full story by now.
Oh, shoot, it's the police!
Eat my dust, po-po!
I managed to just barely escape.