 The FIA shortened the Mantorp Park, Alastaro Circuit, and Tierp Arena rounds of the European Drag Racing Championship because of track concerns, but drag races at Hockenheimring and Santa Pod remained at the distance because of its length until the end of the 2011 season.The 2012 FIA drag racing championships for Top Fuel will only be held at the 1,000-foot distance (although the Hockenheimring dragster round was cancelled following track treatment controversy as a result of Formula One officials scraping the entire drag strip in an effort to prevent drivers from using the drag strip launch pad for additional grip in the Südkurve during the Grosser Preis Santander von Deutschland two weeks before the Hockenheimring drag racing round); Adelaide International Raceway became Australia's first 1,000-foot drag strip.In 2017, the International Hot Rod Association changed to 1,000-foot racing for its Top Fuel cars starting with the 2017-18 ACDelco Thunder Nationals (first IHRA Top Fuel race of the 2017–18 IHRA 400 Thunder season).