This game is what convinced me to buy an XBOX. Amazing fluid tracks, and great choice of cars.
The only thing is that I began winning 99% of the races. Bumping up the level a bit, I still managed to get the wins, even if some of them were just by a second or two...
However the learning curve is great, good sound, and naturally beautifully rendered machines. Putting on decals and paint on your cars is an absorbing way of whittling away hours into the night, and look to be a complete game in their own right..bring out your creativity.
Well worth the buying price.