Sounds fair, he's being sucked into the underground and they have more than enough money. If they want someone to race for them I'm sure they'll spend some cash on a car. Of course, if he tried to leave now I bet he would meet some henchmen.
That was intended as a joke.
But I watch alot of tv, and when the mob/underground recruits an outsider to do a job (in this case drive) and said driver goes out and totals the car they provide for him before even doing some actual racing, they don't buy a replacement car. They fit the driver with cement shoes and show him the bottom of a river.
That would make for a terribly short story though, so lets see where this one goes.
Next part will be coming shortly, I've been flat-out with things lately. Sorry for the suspense people =P