For some, it’s an annoyance. They don’t like the sound. They don’t like the smell. They cast a bothered glance at anyone who creates one. They just don’t see the point. For others, however, it’s almost an intravenous infusion of adrenaline. Their hearts beat faster, they start tapping their feet and they feel a little sweaty in the palms. It’s called a burnout and, for sports- and muscle-car