The NHRA sanctions competition in four main classifications:
The premier class. Evolved from modern-era gas-powered dragsters whose bodies were removed and insides gutted to reduce weight. Now, they look like needle-shaped cars with bicycle wheels on the front (they're not really) and enormous rear wheels. Wheel base: 180-300 inches. Power: A 500-cubic-inch V8 (Hemi) engine. Fuel: A mixture of nitro-methane. Horsepower: 6,000 or higher. Quarter-mile records: 4.48 seconds; 326.91 mph.
So called because their carbon-fiber bodies are funny-looking replicas of street cars. Basically a Top Fuel car with a short wheel base and the same engine. The short wheel base (maximum 125 inches) and less downforce makes the Funny Car a lot tougher to drive in a straight line. Records: 4.78 seconds; 324.05 mph.
Designed to look like a showroom version of a Pontiac Grand Am, Chevrolet Cavalier, Dodge Neon or Ford Mustang. Has functional doors and a huge scoop on the hood. The body must be an approved late model, no more than 5 years old. Engine: 500ci V8 with sheet-metal manifold and four-barrel carburetors. Horsepower: 1,250. Record: 6.809 seconds; 202.36 mph.
PRO STOCK MOTORCYCLE
Looks like a showroom model and runs a gas-burning engine. Open to bikes from 1993 or later. Wheelbase: 70 inches. Horsepower: 300. Record: 7.138 seconds; 191.48 mph.
_ Source: NHRA