Need for Speed - Porsche Unleashed [NTSC-U] ISO
[SLUS-01104]

This is a Porche-Only racing title from the Need For Speed franchise. The game was noted "Back in the day" for the ability to tune the settings and change colours of cars, as well as having a car damage feature, although fairly limited. 
The game featured what was called "Evolution mode" though you can think of this as a sort of career mode in which you have to start out with a cheaper, older vehicle, and start winning races and tournaments to purchase faster and newer machines, thus moving yourself up the ladder.
This is also reportedly one of the first NFS titles to include police chases and was, in my opinion, great fun!