<Li> Junior Dragster (racers between the ages of 8 and 18 may race a half scale version of the sport's fastest car, Top Fuel Dragster . Juniors run as following: 12.90 - slower for 8 - 9 year olds, 10 - 12 year olds at 8.90, and 13 - 18 year olds 7.90 and slower at a top speed of 85 mph). These cars race at 1 / 8 mile or 1 / 16 mile . </Li> <Li> NHRA new class for Juniors is JR COMP running 6.90 s at a top speed of 110 miles per hour (180 km / h) (1 / 8 mile or 1 / 16 mile). </Li> <P> A complete listing of all classes can be found on the respective NHRA and IHRA official websites . </P> <P> The UEM also has a different structure of professional categories with Top Fuel Bike, Super Twin Top Fuel Bike, and Pro Stock Bike contested, leaving the entire European series with a total of 8 professional categories . </P>

Where does the term drag racing come from