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Stock car racing is a form of automobile racing found mainly and most prominently in the United States and Canada, with Australia and New Zealand also having forms of stock car auto racing. Traditionally, races are run on oval tracks measuring approximately . The world's largest governing body for stock car racing is the American NASCAR, and its Sprint Cup Series is the premier top level series of professional stock car racing. Top level races typically range between in length. Top level stock cars reach speeds in excess of 〔http://www.nascar.com/en_us/news-media/articles/2014/4/9/nascar-sprint-cup-series-michigan-international-speedway-goodyear-tire-test.html〕〔http://motorsports.nbcsports.com/2014/06/13/kevin-harvick-records-second-fastest-qualifying-speed-in-nascar-history-and-does-it-twice-at-michigan/〕〔http://www.mikemulhern.net/breakingnow/wow-218-mph-at-michigan-fastest-day-in-nascar-history-and-drivers-are-uh-concerned/〕 at speedway tracks and on superspeedway tracks such as Daytona International Speedway and Talladega Superspeedway.〔http://www.foxsports.com/nascar/story/year-of-speed-nascar-teams-go-faster-than-ever-before-112114〕〔http://www.foxsports.com/nascar/story/year-of-speed-nascar-teams-go-faster-than-ever-before-112114〕〔http://www.sportingnews.com/nascar-news/4577813-dale-earnhardt-jr-tops-215-mph-michigan-test-qualifying-records-restrictor-plates〕〔http://www.sportingnews.com/nascar-news/4577813-dale-earnhardt-jr-tops-215-mph-michigan-test-qualifying-records-restrictor-plates〕 Contemporary NASCAR-spec top level cars produce maximum power outputs of 860-900hp〔http://www.foxsports.com/nascar/story/exclusive-nascar-moving-toward-horsepower-reduction-in-15-032214〕〔http://auto.howstuffworks.com/auto-racing/nascar/nascar-basics/nascar-engines1.htm〕 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 at the Bonneville Salt Flats.〔http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id=10218693&linkID=14271591〕〔http://www.knfilters.com/news/news.aspx?id=1154〕 ==Stock cars== A stock car, in the original sense of the term, is an automobile that has not been modified from its original factory configuration. Later the term ''stock car'' came to mean any production-based automobile used in racing. This term is used to differentiate such a car from a "race car", a special, custom-built car designed only for racing purposes. The actual degree to which the cars conform to standard model specs has changed over the years and varies from country to country. Today most American stock cars may superficially resemble standard American family sedans, but are in fact purpose-built racing machines built to a strict set of regulations governing the car design ensuring that the chassis, suspension, engine, etc. are architecturally identical on all vehicles. For example, the NASCAR Sprint Cup series now requires fuel injection. The closest European equivalent to stock car racing is probably touring car racing. In the UK and New Zealand there is a racing formula called stock cars but the cars are markedly different from any road car one might see. In Australia there was a formula that was quite similar to NASCAR called AUSCAR, but it has now closed down, and a form of touring cars has taken its place (this is known locally as "V8 supercars", with the Bathurst 1000 and Clipsal 500 featuring prominently). The Racecar-Euro Series began in 2009 and was sanctioned by NASCAR as a touring series in 2012, currently operating as the NASCAR Whelen Euro Series. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Stock car racing」の詳細全文を読む スポンサード リンク
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