Long story short: It sucks.
A wicked concept, (start your won car company, and then gain respect by winning races.) But with the lack of a good physics engine (or any engine for that matter) it's god damned terrible. Couple this with the fact that the story is about as exciting as reading the dense symbolist tome Mody Dick after being up for 30 hours and you end up with one shitty game that doesn't deserve to be on my hard drive. Fuck you Atari. I'm thorwing out my shirt which bears your logo.