Stock car racing is a form of automobile racing found mainly and most prominently in the United States and Canada, with Australia, New Zealand and Brazil also having forms of stock car auto racing. Traditionally, races are run on oval tracks measuring approximately 0.25 to 2.66 miles (0.4 to 4.3 kilometers). The world’s largest governing body for stock car racing is the American NASCAR, and its Monster Energy NASCAR Cup Series is the premier top level series of professional stock car racing. Top level races typically range between 200 to 600 miles (322 to 966 km) in length.
Top level stock cars reach speeds in excess of 200 mph (322 km/h) at speedway tracks and on superspeedway tracks such as Daytona International Speedway and Talladega Superspeedway. Contemporary NASCAR-spec top level cars produce maximum power outputs of 860-900 hp from their naturally aspirated V8 engines. In October 2007 American race car driver Russ Wicks set a speed record for stock cars in a 2007-season Dodge Charger built to NASCAR specifications by achieving a maximum speed of 244.9 mph (394.1 km/h) at the Bonneville Salt Flats. For the 2015 NASCAR Sprint Cup Series season, power output of the competing cars ranged from 750 to 800 hp (560 to 600 kW).
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