Noticed a few flaws that you could fix
In first person, the player can lean all the way back and forth so you're through the seat/dashboard,
Also if you turn the tires all the way, the axel sticks through them,
And the car will rock back and forth half the time you're driving
Its still a great car, but it could use some fixing up :P
Also I like the way you did the acceleration, instead of instant top speed.