Drifter

The Drifter is a small white 2 door compact driven by the Talons, it is unlocked by completing the stunt run in Blister Canyon.

Insperation
The Drifter is based off of a Volkswagen Baja Beetle, and has various offroad modifications and a supercharged engine.

Usefullness.
The Drifter is pretty fast, so it would be useful in races, but more than likely you will have all the races in Blister Canyon complete by the time you decide to try to unlock this.