The Survolt is the lowest-ranked B-class car in the game, and it really is a fast car. Its handling is iffy, but the rest is history. Its got infinity-like nitro duration with a 5/10/15 efficiency score. You will most commonly see it in multiplayer. If you somehow match up your Survolt against the "Donk", I'm sure you'll have a competing chance for the top spot. You can get the Survolt for 45,000 credits.