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Pratt Miller Engineering, also known as Pratt & Miller, is an American company involved in the automotive and arms industries. It was founded by Gary Pratt and Jim Miller in 1989. A defense division was added in 2013 and the company was acquired by Oshkosh Corporation in 2020. [1] The company is headquartered in the unincorporated community of New Hudson, in Lyon Township, Oakland County, Michigan. They are best known as service providers for many of General Motors' motorsports programs, [2] including the operation of the Corvette Racing team. [1]
Since their alliance with GM, Pratt Miller have won numerous championships and famous racing events. Corvette Racing has won their class at the 24 Hours of Le Mans nine times, claimed the overall victory at the Rolex 24 at Daytona in 2001, and won seven straight American Le Mans Series championships. Team Cadillac won seven Pirelli World Challenge championships, [3] while The Racer's Group, running Pratt Miller-built Pontiac GTO.Rs, [4] won the Rolex Sports Car Series championship in 2006. GM Racing's Katech-built LS7.R small-block engine was also named the 2006 Global Motorsport Engine of the Year. Katech built the C5-R and LS7.R engines that powered the C5-R and C6.R Corvettes in the GTS/GT1 classes of ALMS and the 24 Hours of Le Mans. After Le Mans 2009, Corvette Racing switched to the GT2 class and decided to bring the engine builds in-house. Corvette Racing won the 2012 and 2013 American Le Mans Series GT Team's and Manufacturer's Championships.
Pratt Miller developed a road-going tuned version of the Chevrolet Corvette C6 named C6RS. The C6RS was powered by a 500 cubic inch LS-based engine developed and built by Katech Inc.
One of the company's first products was the Intrepid RM-1 GTP car, built in 1991.
Larbre Compétition is a French auto racing team founded in 1988 by Jack Leconte. Based at the Circuit du Val de Vienne in Le Vigeant, Larbre has had considerable success in the Porsche Carrera Cup, French GT Championship, and international FIA GT Championship. Previously working with major automobile manufacturers like Porsche, Ferrari, and Chrysler, Larbre ran one of the factory Aston Martin squads in the Le Mans Series where they won the 2006 GT1 class championship.
Corvette Racing is an American auto racing team established in 1999 by General Motors and Pratt Miller for the purposes of competing in sports car racing internationally. Corvette Racing was originally the official racing program for General Motors and their Chevrolet Corvette production car until the end of the LM GTE class in 2023, having utilized four generations of the Corvette to develop racing cars, although racing programs involving the Corvette have been endorsed by General Motors to varying degrees since 1956. The team is known for its yellow livery and several class wins at the 24 Hours of Le Man.
Grand Touring Endurance, shortened to GTE, was a set of regulations maintained by the Automobile Club de l'Ouest (ACO) and IMSA for grand tourer racing cars used in the 24 Hours of Le Mans, 24 hours of Daytona GTLM, and its associated series. The class was formerly known as simply Group GT between 1999 and 2004, and later referred to as Group GT2 between 2005 and 2010. The GT2 name has since been revived for a different set of regulations.
The 2015 United SportsCar Championship was the second season of the International Motor Sports Association's United SportsCar Championship and the last to be held under that name. It was also the 45th overall season of the IMSA GT championship tracing its lineage to the 1971 IMSA season. It began on January 24 with the 24 Hours of Daytona. and ended on October 3 at Petit Le Mans.
The 2016 IMSA SportsCar Championship was the third season of the United SportsCar Championship and first to be under the name as the IMSA SportsCar Championship organized by the International Motor Sports Association (IMSA). It was the 46th season of IMSA-sanctioned GT Championship sportscar racing tracing its lineage to the 1971 IMSA Camel GT season. It began on January 30 with the 24 Hours of Daytona and ended on October 1 at Petit Le Mans.
The 65th Mobil 1 12 Hours of Sebring fueled by Fresh from Florida was an endurance sports car racing event held at Sebring International Raceway near Sebring, Florida from 16 to 18 March 2017. The race was the second round of the 2017 WeatherTech SportsCar Championship, as well as the second round of the North American Endurance Cup.
The 2019 24 Hours of Daytona was an International Motor Sports Association (IMSA)-sanctioned endurance sports car race held at the Daytona International Speedway combined road course in Daytona Beach, Florida, on January 26–27, 2019. It was the 57th running of the race, and the first of 12 races in the 2019 IMSA WeatherTech Sportscar Championship, and the first of four rounds of the 2019 Michelin Endurance Cup.
The 67th Mobil 1 Twelve Hours of Sebring Presented by Advance Auto Parts was an endurance sports car racing event held at Sebring International Raceway near Sebring, Florida, from 14–16 March 2019. The race was the second round of the 2019 WeatherTech SportsCar Championship, as well as the second round of the Michelin Endurance Cup. Action Express Racing and Wayne Taylor Racing brought home a Cadillac 1-2-3 finish for the overall honours, with the win going to the No. 31 crew of Eric Curran, Felipe Nasr and Pipo Derani, who won the 12 Hour race for a third time in the previous four editions. the #911 Porsche GT Team won in the GTLM class over the No. 66 Ford GT of Chip Ganassi Racing, LMP2 was won by Performance Tech Motorsports, and the Grasser Racing Team took a second straight victory in the GTD class, winning over fellow Lamborghini GTD team Magnus Racing, who came 2nd in only their second start as a Lamborghini team.
The 2019 Sahlen's Six Hours of the Glen was an endurance race sanctioned by the International Motor Sports Association (IMSA). The race was held at Watkins Glen International in Watkins Glen, New York, on June 30, 2019. This race was the sixth round of the 2019 WeatherTech SportsCar Championship, as well as the third round of the 2019 Michelin Endurance Cup.
The Chevrolet Corvette C8.R is a grand tourer racing car built by Pratt Miller and Chevrolet for competition in endurance racing. It serves as the replacement for the Corvette C7.R, using the C8 generation Chevrolet Corvette as a base. Corvette Racing fielded the C8.R in the IMSA SportsCar Championship GT Le Mans (GTLM) class starting with the 2020 season. The car was built to LM GTE specifications as per GTLM rules.
The 2019 Petit Le Mans was the 22nd running of the Petit Le Mans, and was held on October 12, 2019. It was the last race in the 2019 IMSA WeatherTech Sportscar Championship, and the last race of the 2019 Michelin Endurance Cup, and was run at Road Atlanta in Braselton, Georgia. The race was won overall by the #31 Whelen Engineering Racing Cadillac DPi-V.R after its sister car fell out with brake failure with less than 30 minutes remaining. The distance covered was a race record.
The 2020 Petit Le Mans was the 23rd running of the Petit Le Mans, and was held on October 17, 2020. It was the 9th race in the 2020 IMSA WeatherTech Sportscar Championship, and the 3rd race of the 2020 Michelin Endurance Cup, and was run at Road Atlanta in Braselton, Georgia. The race was won overall by the #10 Konica Minolta Cadillac Cadillac DPi-V.R after the #7 Acura Team Penske and #31 Whelen Engineering Racing entries made contact and spun out in the closing minutes of the race.
The 2020 IMSA SportsCar Weekend was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Road America in Elkhart Lake, Wisconsin, on August 2, 2020. This race was the fourth round of the 2020 WeatherTech SportsCar Championship, and the third round of the 2020 WeatherTech Sprint Cup.
The 2021 Detroit SportsCar Classic was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at The Raceway on Belle Isle in Detroit, Michigan on June 12, 2021. This race was the fourth round of the 2021 IMSA SportsCar Championship, and the second round of the 2021 WeatherTech Sprint Cup.
The 2021 Northeast Grand Prix was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Lime Rock Park in Lakeville, Connecticut, on July 17, 2021. This race was the seventh round of the 2021 IMSA SportsCar Championship, and the fourth round of the 2021 WeatherTech Sprint Cup.
The 2022 IMSA SportsCar Championship was the 52nd racing season sanctioned by the International Motor Sports Association (IMSA), which traces its lineage back to the 1971 IMSA GT Championship. This was also the ninth season of the IMSA SportsCar Championship since the merger between the American Le Mans Series and the Rolex Sports Car Series in 2014, and the seventh under the sponsorship of WeatherTech. The series began on January 27 for the 24 Hours of Daytona, and ended on October 1 with the Petit Le Mans after 12 races.
The 2021 Petit Le Mans was the 24th running of the Petit Le Mans, and was held on November 13, 2021. It was the 12th and final race in the 2021 IMSA SportsCar Championship, and the 4th race of the 2021 Michelin Endurance Cup. The race was held at Road Atlanta in Braselton, Georgia. This race was the last ever race for the GTLM Class.
The 2021 Grand Prix of Long Beach was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Long Beach street circuit in Long Beach, California on September 25, 2021. It was the tenth round of the 2021 IMSA SportsCar Championship, and seventh the round of 2021 WeatherTech Sprint Cup.
The 2021 Michelin GT Challenge at VIR was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Virginia International Raceway in Alton, Virginia on October 9, 2021. The race was the eleventh round of the 2021 IMSA SportsCar Championship, and the eighth round of the WeatherTech Sprint Cup.
The 2017 Monterey Grand Prix was a sports car race sanctioned by the International Motor Sports Association (IMSA).The Race was held at Mazda Raceway Laguna Seca in Monterey, California on September 24, 2017. The race was the eleventh round of the 2017 IMSA SportsCar Championship.