No-prep drag racing deliberately leaves the track surface untreated, which turns every run into a fight against a car’s own power rather than a clean launch. A modified 1955 Chevy Bel Air known as 55 2.0 has put together a six-race, six-win streak in that format while running only two of its three nitrous kits. Holding power in reserve on a surface designed to punish anyone who cannot manage grip is the interesting part.