2. Rolling-start drag: When one or more vehicle(s) approaches another already driving, and initiates a drag race- usually by 'revving' their engines or flashing their headlights, and drag race to get the most distance between the opponent(s)- usually the race ends around 3 or 4 car lengths. This type of race is usually interrupted by 5-0 or traffic.
2. I went drag racing with my buddy in his car, and we beat a mustang on his crotch rocket by 6 car lengths
As opposed to the lesser forms of racing, populated by various poofs, puds, and posers, who merely drive around in circles looking for a finish line.