Forza 2, with more umph!!!
Starts of the same as most racers do, the great car is yours on loan for the first race. The you have to level-up and modify cars to get them as good as the one you drove to begin with.
Modifying the cars themselves is easier now, because Forza includes a mode called "Quick Upgrade" Name says it all really, you can upgrade to each class without buying individual parts (this is still present for those who want to change the dampers, springs and tire widths).
The niggles i've had is that the only way to change how many laps you do is via "split screen", there is no other way around it.
Other than that, this is a fantastic, and highly addictive game.