The 4 Hours of Red Bull Ring (originally known as the 500 km Zeltweg) was an

endurance Endurance (also related to sufferance, resilience, constitution, fortitude, and hardiness) is the ability of an organism to exert itself and remain active for a long period of time, as well as its ability to resist, withstand, recover from a ...

sports car A sports car is a car designed with an emphasis on dynamic performance, such as handling, acceleration, top speed, the thrill of driving and racing capability. Sports cars originated in Europe in the early 1900s and are currently produced by ...

event held near

Spielberg Steven Allan Spielberg (; born December 18, 1946) is an American director, writer, and producer. A major figure of the New Hollywood era and pioneer of the modern blockbuster, he is the most commercially successful director of all time. Spie ...

Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...

. Originally based at the

Zeltweg Airfield Zeltweg Air Base, now known as Fliegerhorst Hinterstoisser, is a military airfield in Styria, Austria near Zeltweg. It is the main airfield of the Austrian Air Force. It was also used as a motor racing circuit in the 1960s. History Since 19 ...

, the race moved to the

Österreichring The Red Bull Ring is a motorsport race track in Spielberg, Styria, Austria. The race circuit was founded as Österreichring (translation: Austrian Circuit) and hosted the Austrian Grand Prix for 18 consecutive years, from to . It was later sho ...

and was lengthened to a 1000 km distance and there it continued to be a regular event in the

World Sportscar Championship The World Sportscar Championship was the world series run for sports car racing by the FIA from 1953 to 1992. The championship evolved from a small collection of the most important sportscar, endurance, and road racing events in Europe and No ...

until 1976.

History

In 1963,

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, ...

held its first exhibition event at the

, located in

Styria Styria (german: Steiermark ; Serbo-Croatian and sl, ; hu, Stájerország) is a state (''Bundesland'') in the southeast of Austria. With an area of , Styria is the second largest state of Austria, after Lower Austria. Styria is bordered to ...

. The airfield had been modified in 1958 to allow it to be used for motorsports, using the

runway According to the International Civil Aviation Organization (ICAO), a runway is a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft". Runways may be a man-made surface (often asphalt concrete, as ...

and

taxiway A taxiway is a path for aircraft at an airport connecting runways with aprons, hangars, terminals and other facilities. They mostly have a hard surface such as asphalt or concrete, although smaller general aviation airports sometimes use gravel ...

s for straights. Following the successful event, the

Austrian Grand Prix The Austrian Grand Prix (german: Großer Preis von Österreich) is a Fédération Internationale de l'Automobile sanctioned motor racing event that was held in , –, –, and then returned to the Formula One calendar in . History The A ...

joined the Formula One calendar for the 1964 season. However complaints from drivers about the poor surface led to the

FIA FIA is the Fédération Internationale de l'Automobile (English: International Automobile Federation), the world's governing body for all forms of motor sport where four or more wheels are used. Fia or FIA may also refer to: People * Fia Backst ...

abandoning the circuit before a 1965 event could be held. Left without a major event, the organizers turned to the

and offered a 500 km event to take place starting in 1966. This event proved more successful due to the ability of the sportscars to handle the bumpy surface better than a Formula One car. In 1969, due to demands once again from racers for a better circuit, the

was built in the mountains less than a mile from Zeltweg Airfield. Once the new circuit was completed, the sports car event moved to its permanent home. Due to the freshness of the track, the organizers expanded the event to a 1000 km endurance. The smoothness of the new racing surface allowed for greater reliability and greater ease in achieving the longer distance. The high-speed nature of the layout also allowed for quick races, with some events running under five hours. However, with rule changes in the evolved

World Championship of Makes The World Sportscar Championship was the world series run for sports car racing by the FIA from 1953 to 1992. The championship evolved from a small collection of the most important sportscar, endurance, and road racing events in Europe and North ...

in 1976, the event became limited to a maximum of six hours due to the decrease in overall speed of the competitors. The 1976 event also became the final 1000 km race at the Österreichring. A second Austrian race was added to the separate World Sportscar Championship, held at the smaller

Salzburgring The Salzburgring is a motorsport race track located in Plainfeld, east of Salzburg. Key Facts Track Length Bends 15 Straights ...

. Due to safety concerns and a shrinking schedule, the Österreichring was dropped from the 1977 season, leaving the Salzburgring one final event before it too was abandoned, marking the final Austrian event in the World Sportscar Championship. Following the rebuilding of the Österreichring into the new A1-Ring in 1997, the

FIA GT Championship The FIA GT Championship was a sports car racing series organized by the Stéphane Ratel Organisation (SRO) at the behest of the Fédération Internationale de l'Automobile (FIA). The championship was mostly concentrated in Europe, but throughout ...

briefly resurrected the sportscar endurance race in a modified form. A four-hour event was run in 1997 covering nearly 700 km, followed by 500 km races in 1998, 2000, and 2001. The FIA chose not to return to the circuit after the 2001 event, and the A1-Ring was eventually partially torn down in 2004, until it was rebuilt as Red Bull Ring in 2011.

Winners

† - The 1975 event was scheduled for 1000 km, but was stopped after 600 km due to heavy rain.

External links

Motor Racing Circuits Database
- Zeltweg Airfield (1958-1968)

- Österreichring (1969-1976) {{Automobile endurance races Sports car races Auto races in Austria

Zeltweg Zeltweg is a town in Styria, Austria. It is located in the Aichfeld basin of the Mur River in Upper Styria. Larger municipalities in the vicinity are Judenburg, Knittelfeld and Fohnsdorf. History Some farms were recorded at Zeltweg in the Duchy ...