Question: what are the nhra classes?
Answer: Top Fuel, Funny Car, and Pro Stock are just three of the more than 200 classes of vehicles featured in NHRA competition. ... 
The four Professional categories are Top Fuel, Funny Car, Pro Stock, and Pro Stock Motorcycle. ... 
Funny Car. ... 
Pro Stock. ... 
Pro Stock Motorcycle. ... 
Top Alcohol Dragster. ... 
Top Alcohol Funny Car. ... 
Comp.