Fast.
Most people only think they want to go fast. You go out and push a car or bike to the edge and it can get pretty scary.
I did some work for a guy on his "fast" Mustang and then he let me drive it with him in the passenger seat.
I hammered on it and threw it hard into some off camber corners. He might have shit himself a bit.
He sold the car within a week and bought a big Lincoln.