Hi Dr. Nick! =P
Well, personally, I wouldn't go with NASCAR, as it has the ability to well, put people to sleep at a disturbing rate. Turning left a thousand times is about as fun as dying.
Burnout is the way to go. The controls are arcade-like, no GT3 type handling, but the damage model is fantastic. Hit a car at full force and you'll wince in pain as your car gets reduced to the size of a Lego block...
But you know what's better?
Waiting another month or so for Burnout 2. Better graphics, better crashes, better soundtrack, and a whole mode dedicated to crashing!
EDIT: Me and Gamer Donkey posted at the same time! Watch out, it's a glitch in the Matrix! Duck and cover!