IROC II was the second year of IROC competition, which took place over three weekends in 1974 and 1975. It saw the use of the

Chevrolet Chevrolet ( ) is an American automobile division of the manufacturer General Motors (GM). In North America, Chevrolet produces and sells a wide range of vehicles, from subcompact automobiles to medium-duty commercial trucks. Due to the promi ...

Camaro in all races, which replaced the

Porsche Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see below), is a German automobile manufacturer specializing in luxury, high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany. Th ...

Carrera RSR race cars used in the first year of competition. The only track carried over from the first year was

Riverside International Raceway Riverside International Raceway (sometimes known as Riverside, RIR, or Riverside Raceway) was a motorsports race track and road course established in the Edgemont area of Riverside County, California, just east of the city limits of Riversid ...

, as the series raced on the oval at

Daytona International Speedway Daytona International Speedway is a race track in Daytona Beach, Florida, Daytona Beach, Florida, United States, about north of Orlando, Florida, Orlando. Since opening in 1959, it has been the home of the Daytona 500, the most prestigious race ...

instead of the infield road course.

Michigan International Speedway Michigan International Speedway (formerly named as the Michigan Speedway from 1997 to 2000) is a D-shaped oval superspeedway in Brooklyn, Michigan. It has hosted various major auto racing series throughout its existence, including NASCAR, Cham ...

was also added as the second oval in the schedule, which consisted of four races. Bobby Unser won the series championship and $41,000. The roster of drivers and final points standings were as follows:IROC season statistics at racing-reference.info
Retrieved March 8, 2007

Race results

Michigan International Speedway, Race One

# Bobby Unser #

Cale Yarborough William Caleb Yarborough (March 27, 1939 – December 31, 2023) was an American NASCAR Winston Cup Series driver and owner, businessman, farmer, and rancher. He was the first driver in NASCAR history to win three consecutive championships, winn ...

# David Pearson #

Bobby Allison Robert Arthur Allison (December 3, 1937 – November 9, 2024) was an American professional stock car racing driver and owner. Allison was the founder of the Alabama Gang, a group of drivers based in Hueytown, Alabama, where there were abundant ...

# George Follmer #

Emerson Fittipaldi Emerson Fittipaldi (; born 12 December 1946) is a Brazilian former racing driver and motorsport executive, who competed in Formula One from to . Fittipaldi won two Formula One World Drivers' Championship titles, which he won in and with Team ...

# Ronnie Peterson # Johnny Rutherford # A. J. Foyt #

Richard Petty Richard Lee Petty (born July 2, 1937), nicknamed "the King", is an American former stock car racing driver who competed from 1958 to 1992 in the former NASCAR Grand National and Winston Cup Series (now called the NASCAR Cup Series), most nota ...

# Graham Hill #

Jody Scheckter Jody David Scheckter (; born 29 January 1950) is a South African former racing driver and businessman, who competed in Formula One from to . Scheckter won the Formula One World Drivers' Championship in with Ferrari, and remains the only Afric ...

Riverside International Raceway, Race Two

# George Follmer # A. J. Foyt # David Pearson #

# Ronnie Peterson #

# Johnny Rutherford # Graham Hill # Bobby Unser #

Riverside International Raceway, Race Three

# Bobby Unser #

# A. J. Foyt # George Follmer # Graham Hill # Johnny Rutherford # Ronnie Peterson #

# David Pearson #

Daytona International Speedway, Race Four

# Bobby Unser # A. J. Foyt #

# David Pearson #

# Ronnie Peterson # George Follmer # Johnny Rutherford

References

External links

IROC II History - IROC Website
{{IROC Championship International Race of Champions 1974 in American motorsport 1975 in American motorsport