Moin moin -_-
Dude ... please use hidden tags for this image, else it blows the full thread ...
Second, yes it's possible to make this, a simple spell which increase movement speed and (with trigger) creates the nitro effect at the back of the car. But I can say how to create the view for the player if he use nitro =S
I can't give an example, because it depends on how this spell is used.
Greetings and Peace
Dr. Boom