Sega Rally 2 has three basic game play modes. The first is arcade. The second is time attack. Of course, this is probably my imagination, but that's how I felt. If you get first place in any one year in the 10 year mode, a new car becomes available for you to control.
Cars are customizable at any time, from steering to brakes to tires and more.
Best of all, you don't have to mess with earning money to buy these parts. You basically just earn them. Sega Rally 2 is the best racer on the Dreamcast, but it doesn't match the game play or even the graphical appeal of Electronic Arts' far superior Beetle Adventure Racing.