Champ Car was the name for a class and specification of open wheel cars used in American Championship Car Racing for many decades, primarily for use in the Indianapolis 500 auto race. Such racing has also been sanctioned by the American Automobile Association, the United States Auto Club (USAC), the Sports Car Club of America, the Championship Racing League, and the Indy Racing League (IRL).

In its most popular usage, "Champ Car" was the last name given to a governing body formerly known as Championship Auto Racing Teams, or CART, founded in 1979 by team owners who disagreed with the USAC. At the height of the popularity of the series in 1992, it was known as the PPG Indy Car World Series until the split with the Indy Racing League in 1996. Thereafter, it was known as the CART FedEx Championship Series until 2003, when it was known as Bridgestone Presents The Champ Car World Series Powered By Ford. CART went bankrupt at the end of the 2003 season. A trio of CART team owners purchased the assets of the sanctioning body and renamed it as Champ Car Open Wheel Racing Series, later renaming it to Champ Car World Series (CCWS) LLC. Continuing financial difficulties caused CCWS to file for bankruptcy before its planned 2008 season; its assets were merged into the IRL's IndyCar Series, reuniting both series of American championship open-wheel racing.

Champ may refer to:

An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods.

The term motorcar has also been used in the context of electrified rail systems to denote a car which functions as a small locomotive but also provides space for passengers and baggage. These locomotive cars were often used on suburban routes by both interurban and intercity railroad systems.

There are approximately 600 million passenger cars worldwide (roughly one car per eleven people). Around the world, there were about 806 million cars and light trucks on the road in 2007; the engines of these burn over a billion cubic meters (260 billion US gallons) of petrol/gasoline and diesel fuel yearly. The numbers are increasing rapidly, especially in China and India.

Jeffrey John Krosnoff (September 24, 1964 – July 14, 1996) was an American race car driver. He was born in Tulsa, Oklahoma, but grew up in La Cañada, California. Krosnoff attended Flintridge Prep, a private high school, and enrolled at University of California, San Diego in September 1982. After one year, he transferred to UCLA, where he majored in business. Throughout his college career, Krosnoff was focused on pursuing his dream of professional racecar driving.

Krosnoff competed in Japan in Formula 3000, where he was active from 1989 to 1995. Krosnoff also competed in the 24 Hours of Le Mans several times, scoring 2nd in 1994. In the 1996 season, he made 11 starts in the CART Champ Car Series, driving a Reynard-Toyota for Arciero-Wells Racing.

On July 14, 1996 with 3 laps to go in the Molson Indy Toronto at Exhibition Place Krosnoff was involved in a horrendous accident. Krosnoff's car made wheel-to-wheel contact with the car of Stefan Johansson, sending it into the air, over a concrete barrier, and into the catch fencing lining the street course. The fence did not deflect the car enough to keep it from hitting a light post which was inside the fencing.

Katherine Legge ( /ˈlɛɡ/ LEG; born 12 July 1980 in Guildford, Surrey, UK) is a British auto racing driver. As of 2012^[update], she races in the IndyCar Series with Dragon Racing.

Prior to joining the Toyota Atlantic series, she raced in several developmental open-wheel series in Britain, including Formula Three, Formula Renault and Formula Ford. In 2000 she was the first woman to achieve a pole in a Zetec race. In 2001 she beat Kimi Räikkönen's lap record and achieved a pole, and she was the first woman to receive the BRDC's "Rising Star" accolade. She received the 2005 RACER Magazine "Most Promising Road Racer of The Year" award, a title that had been awarded every year since 2002 to A. J. Allmendinger. Other drivers that have won the award include Räikkönen, Jenson Button, Cristiano da Matta, Alex Barron, Giancarlo Fisichella, Greg Moore, and Gil de Ferran.

In November 2005, Legge became the first woman to test a Formula One car since Sarah Fisher in 2002. on the second and third days (22 and 23 November) of the Minardi team's final testing session at Vallelunga near Rome. After she crashed after 2 laps on her first run on the track, it was decided to postpone the test until the following day, on which she completed 27 laps with a best lap time of 1 min 21.176 sec. She was also the first woman to test an A1 Grand Prix car, on 9–11 December 2005 with A1 Team Great Britain.