Sorry to go off topic but Villain - do you play/post on the EA BC2 forums by any chance?
Nope, and that's what PMs and Visitor Messages are for.
VillainWaist of money?
It depends on how you're choosing to spend your credits. You definitely don't need that car to beat anything. The Toyota 88C-V that you win from A-Spec Like The Wind is plenty. But if you're like me and beat all of those events and just have extra credits floating around and nothing to spend them on... Why not? It's not real money and you can always grind for more.
OT: If you want to collect race cars, then yes, this car is considered superior than the R89C, but not quite as good as the Sauber.
What for playing Bad Company 2?