The Questor Grand Prix was a non-championship race for

Formula One Formula One (also known as Formula 1 or F1) is the highest class of international racing for open-wheel single-seater formula racing cars sanctioned by the Fédération Internationale de l'Automobile (FIA). The World Drivers' Championship, ...

and

Formula 5000 Formula 5000 (or F5000) was an open wheel, single seater auto-racing formula that ran in different series in various regions around the world from 1968 to 1982. It was originally intended as a low-cost series aimed at open-wheel racing cars tha ...

cars held on 28 March 1971 to inaugurate a new racing facility in

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, the

Ontario Motor Speedway Ontario Motor Speedway was a motorsport venue located in Ontario, California. It was the first and only automobile racing facility built to accommodate major races sanctioned by all of the four dominant racing sanctioning bodies: USAC (and now In ...

, built by the Questor conglomerate. Because of the smaller fuel tanks of the F5000 cars, the race was run in two heats of 32 laps, and the final result decided by a points system.

Jackie Stewart Sir John Young Stewart (born 11 June 1939), known as Jackie Stewart, is a British former Formula One racing driver from Scotland. Nicknamed the "Flying Scot", he competed in Formula One between 1965 and 1973, winning three World Drivers' Cha ...

qualified on pole for Heat 1 and finished runner-up behind

Mario Andretti Mario Gabriele Andretti (born February 28, 1940) is an Italian-born American former racing driver. One of the most successful drivers in the history of motorsports, Andretti is one of only two drivers to have won races in Formula One, IndyCar, t ...

Chris Amon Christopher Arthur Amon (20 July 1943 – 3 August 2016) was a New Zealand motor racing driver. He was active in Formula One racing in the 1960s and 1970s, and is widely regarded as one of the best F1 drivers never to win a championship Grand ...

set fastest lap. Andretti and Stewart again finished first and second in Heat 2 and Pedro Rodriguez set fastest lap, quicker than Amon's time in Heat 1. Mario Andretti was declared the winner; with Stewart in second place and

Denny Hulme Denis Clive Hulme (18 June 1936 – 4 October 1992), commonly known as Denny Hulme, was a New Zealand racing driver who won the Formula One World Drivers' Championship for the Brabham team. Between his debut at Monaco in 1965 and his ...

third.

Mark Donohue Mark Neary Donohue Jr. (March 18, 1937 – August 19, 1975), nicknamed "Captain Nice," and later "Dark Monohue," was an American race car driver and engineer known for his ability to set up his own race car as well as driving it to victories. D ...

was the best-placed F5000 finisher in Heat 1, and Ron Grable best in Heat 2. Grable was also the best-placed F5000 driver on aggregate. Hopes for a regular fixture rapidly faded due to financial problems; the Questor Grand Prix remained a one-off event and the Ontario Motor Speedway was never again host to Formula One cars.

Qualifying

''Note: a blue background indicates a Formula 5000 entrant.'' ¹ Hobbs, Lovely and Byers were late entries and relegated to reserve drivers.
² Stewart briefly drove Foyt's car in qualifying.

Classification

''Note: a blue background indicates a Formula 5000 entrant.''

References

* http://www.silhouet.com/motorsport/archive/f1/nc/1971/1971.html#qgp * http://www.formula2.net/F171_7.htm * http://second-a-lap.blogspot.co.uk/2013/05/the-questor-grand-prix.html * https://web.archive.org/web/20151124114931/http://counter-x.net/f1/questor/ * https://www.oldracingcars.com/f1/results/1971/questor/ {{DEFAULTSORT:Questor 1971 Formula One races 1971 in American motorsport 1971 in sports in California Motorsport in California