Interserie is the name of a European-based motorsport series started in 1970 that allows for a wide variety of racing cars from various eras and series to compete with less limited rules than in other series.
Created in 1970 by German Gerhard Härle, it is inspired by English races of the 1960s for Group 7 machinery and by the Nordic Challenge Cup which had run in 1969 in Finland and Sweden. Initially using the Group 7 formula similar to that used by Can-Am in North America, the series would evolve to include open-wheel cars with sports-car style full bodywork from CART, Formula One, Formula 3000, Formula 3 and various other series, as well as Group C sports cars.
Although the teams are not as limitless in their modifications or powerplants, the series continues to run today, mostly with various open-wheel cars without full bodywork that became obsolete in current championship series.
Starting from 1999, the Interserie lost its international status and became a Central European championship with sprint races organised by the Automobilclub von Deutschland, mostly for modified formula cars.
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Auto racing is a motorsport involving the racing of automobiles for competition.
Stock car racing is a form of automobile racing run on oval tracks and road courses measuring approximately 0.25 to 2.66 miles. It originally used production-model cars, hence the name "stock car", but is now run using cars specifically built for racing. It originates from the United States and Canada; the world's largest governing body is the American NASCAR. Its NASCAR Cup Series is the premier top-level series of professional stock car racing. Australia, New Zealand, Mexico, Brazil and the United Kingdom also have forms of stock car racing. Top-level races typically range between 200 and 600 miles in length.
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The Porsche 917 is a sports prototype race car developed by German manufacturer Porsche. The 917 gave Porsche its first overall wins at the 24 Hours of Le Mans in 1970 and 1971. Powered by the Type 912 flat-12 engine of 4.5, 4.9, or 5 liters, the 917/30 Can-Am variant was capable of 0-62 mph (100 km/h) time of 2.3 seconds and 0–124 mph (200 km/h) in 5.3 seconds. The long tail Langheck version had a maximum measured top speed of 386 km/h (240 mph).
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Group 5 was an FIA motor racing classification which was applied to four distinct categories during the years 1966 to 1982. Initially Group 5 regulations defined a Special Touring Car category and from 1970 to 1971 the classification was applied to limited production Sports Cars restricted to 5 litre engine capacity. The Group 5 Sports Car category was redefined in 1972 to exclude the minimum production requirement and limit engine capacity to 3 litres. From 1976 to 1982 Group 5 was for Special Production Cars, a liberal silhouette formula based on homologated production vehicles.
The Kremer K8 Spyder, along with its predecessor, the K7 (1992–1993), were open-cockpit prototypes built by Kremer Racing for use in multiple sportscar series, such as the IMSA GT Championship, Interserie, and International Sports Racing Series. The cars shared many components from the retired Porsche 962 and would eventually go on to win the 24 Hours of Daytona and several championships.
Brun Motorsport GmbH was a Swiss auto racing team founded by driver Walter Brun in 1983. They competed as a Porsche privateer team in sports car racing for their entire existence, running in a multitude of international championships. They notably won the World Sportscar Championship in 1986 and later became a full-fledged chassis constructor. Brun was also briefly part of the EuroBrun Formula One team from 1988 to 1990. The team was eventually dissolved in 1992.
Dauer Sportwagen GmbH was a German automotive company founded by former racing driver Jochen Dauer in Nuremberg. Initially founded as Jochen Dauer Racing in 1987, the racing team had several years of participation in the German Supercup and European Interserie championships, as well as occasional runs in the World Sports-Prototype Championship and Camel GT Championships with the Porsche 962. Following the demise of sports prototype racing in the early 1990s, Dauer Racing GmbH was created to begin limited production of road cars, including a road-legal version of the 962, known as the Dauer 962 Le Mans, which later went on to win the 1994 24 Hours of Le Mans. Once changing to Dauer Sportwagen, the company sold a continuation of the Bugatti EB110. The company went bankrupt in 2008 and parts for the EB110 were transferred to Toscana-Motors GmbH.
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