<P> The series has four main professional classes: Top Fuel Dragster, Funny Car, Pro Stock, and Pro Stock Motorcycle . Top Fuel was the first category, with Funny Cars added in 1966, Pro Stock four years later and Pro Stock Motorcycles in 1987 . Both Top Fuel and Funny Cars regularly see top speeds in excess of 300 miles per hour (480 km / h) today, and one thousand foot times anywhere from 3.70 to 4 seconds . Both these cars burn fuel consisting of 90% nitromethane and 10% methanol . The Pro Stock record is 214 miles per hour (344 km / h), with times often in the 6.4 - 6.7 second range and the Pro Stock Motorcycles usually run at 190 + mph (310 km / h), with times in the low 7 - to high 6 - second range . Top Fuel (class designation: AA / D top fuel dragster) and Fuel Funny Car (class designation: AA / FC top fuel coupe) have recently been limited to a 1,000 - foot (300 m) track, instead of the historic 1 / 4 mile (1,320 feet (402 m)), as a means to limit top speeds and increase safety (there had been a number of engine explosions at or near 300 mph resulting in driver injuries and death). Currently, driver and spectator safety has been enhanced even while top speeds often approach and exceed 300 mph . </P> <P> Some of the popular racers to come through the series include "Big Daddy" Don Garlits, Don "The Snake" Prudhomme, and Shirley Muldowney . Those three gained much attention from the 1960s through 1970s with their speed and personalities, a combination rarely achieved today through the political correctness of sponsorship in today's drivers . Nonetheless there are still colorful characters today, such as 16 - time Funny Car world champion John Force . His daughter, 2007 Rookie of the Year Ashley Force Hood has made appearances on Good Morning America and The Tonight Show and was voted AOL's Hottest Female Athlete in 2007 . </P> <P> On July 2, 2008, following the death of Funny Car driver Scott Kalitta, the NHRA announced that race distances for Top Fuel and Funny Car classes would temporarily be reduced to 1,000 ft from the traditional 1 / 4 mile (1320 ft). The measure was intended to be temporary while safety solutions were explored; however, the races have remained at 1000 feet since Kalitta's death . Although unpopular with the fans, the distance remains at 1,000 feet today at the request of the teams as a cost - saving measure, with no indication by NHRA officials of any intent of returning to the full quarter - mile format any time soon . By late 2012, 1,000 foot racing became globally recognised as the 2012 FIA European title in Top Fuel became 1,000 - foot championships, as Santa Pod and Hockenheim (the last two quarter - mile nitro strips) made the switch, and Australian nitro racing switched to the 1,000 - foot distance only for selected tracks . </P> <P> Starting with the 2007 season, the NHRA implemented a playoff system to determine the champion in each class, billed as the Countdown to The Championship . Each season is divided into two segments of races, with the bulk of the races making up the first segment, and the final events making up the second segment . After the first segment is complete, the drivers in each class at or above the cutoff point in the standings (8th place up to 2007 and 10th place thereafter) become eligible for the championship, while the drivers below the cutoff point are eliminated from championship contention, though they still participate in the remaining race events . The points for the advancing drivers are readjusted so that they are separated by a fixed margin, with first place receiving bonus points . The drivers then compete for the championship over the final races of the season . </P>

When did top fuel change to 1000 feet