[smileyman]

They would fair better than you think drive train wise. To meet the warrantee requirements most proddy models come fairly de-tuned in order to make it to 100,000 miles plus trouble free. A new car has rev limiters and the same ignition/timing controls built in to its ECU to prevent it from running into the dangerous zone where it would suffer failure.

What would show up immediately is deficiency in the braking and handling departments. The brake fluid would boil and teh pads would over heat in a handful of full blast laps, and the suspension would over heat and lose damping properties fairly early on. And at a ridiculously slow lap pace.

OEM tires wouldn't make for much speed either although it would be fun watching drivers struggle to control sliding, bucking, under damped and poor handling cars without brakes!