Pratt Miller

Pratt Miller
Company type	Subsidiary
Industry	Automotive, Arms industry
Founded	1989; 35 years ago (as Pratt & Miller)
Founder	Gary Pratt; Jim Miller
Headquarters	29600 W. K. Smith Drive, New Hudson, Michigan, US
Key people	Matt Carroll; (CEO)
Products	Corvette Racing ; Robotics ; Race Parts; Chassis Parts; Body Parts
Parent	Oshkosh Corporation ; (2020–present)
Divisions	Pratt Miller Motorsports
Website	https://www.prattmiller.com/

Last updated January 21, 2025

A Chevrolet Corvette C8.R CorvetteRacing4Roval.jpg — A Chevrolet Corvette C8.R

Pratt Miller Engineering, formerly 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 and their own Pratt Miller Motorsports.^[1]

History

Pratt Miller was founded in 1989 by Gary Pratt and Jim Miller.^[3] Since 1997, their main focus has been the Corvette Racing program in partnership with General Motors and Chevrolet as well as the Pratt Miller Motorsports division.

One of the company's first products was the Intrepid RM-1 GTP car, built in 1991.

Since its inception, Pratt Miller has been known for its engineering services and its involvement in motorsports. The company's partnership with General Motors (GM) expands outside of the Corvette Racing program, providing engineering and operational support for many of GM's racing programs.

In 2013, Pratt Miller established a new division focusing on defense and the arms industry.

In 2020, the company was acquired by the Oshkosh Corporation.^[1]

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.

Motorsports ventures

NASCAR

Pratt Miller's work in NASCAR includes engineering support for the Chevrolet teams as well contributing to vehicle design and performance enhancements that have helped multiple teams.^[3] Their efforts have contributed to 276 NASCAR Cup Series race wins, 222 NASCAR Xfinity Series race wins, and 152 NASCAR Craftsman Truck Series race wins. Additionally, Pratt Miller has helped contribute to 27 combined manufacturer championships and 28 driver championships across NASCAR's top three series; NASCAR Cup Series, NASCAR Xfinity Series, and NASCAR Craftsman Truck Series.

IndyCar Series

In the IndyCar Series, Pratt Miller played a large role in developing Chevrolet's Aero Kits, which helped improve the aerodynamic performance of Chevrolet-powered cars.^[3] This development work has helped benefit Chevrolet's competitive presence in the series, contributing to 106 IndyCar race wins and 4 Indy 500 victories. Pratt Miller has also helped contribute to 7 driver championships and 7 manufacturer championships in IndyCar.

SportsCar racing

Pratt Miller is most commonly known for its work with Corvette Racing in the IMSA SportsCar Championship and the FIA World Endurance Championship (WEC).^[3] Corvette Racing has achieved numerous victories and championships under Pratt Miller's technical leadership, including class wins at the 24 Hours of Le Mans, the Rolex 24 at Daytona, and multiple American Le Mans Series championships. Additionally, Pratt Miller has contributed to 27 Cadillac Daytona Prototype race wins.

Pratt Miller Motorsports, the motorsports division of Pratt Miller, began working independently in 2024 and currently competes in the LMP2 and GTD Pro classes of the IMSA SportsCar Championship fielding the Oreca 07 and Chevrolet Corvette Z06 GT3.R.^[4]^[5]^[6] Additionally, Pratt Miller holds an FIA constructor license and builds all of the Corvette Z06 GT3.R customer cars, which is a first for GM as 20 cars will be built between 2024 and 2025 and will compete in series all over the world.

Other ventures

In recent years, Pratt Miller has expanded its capabilities as a result of its acquisition by the Oshkosh Corporation. The company has expanded into both the automotive and defense sectors. Additionally, the company has invested in advanced simulation technologies, such as the Driver-in-the-Loop simulator, to enhance their engineering and testing capabilities.^[7]

Cars

Intrepid RM-1 (GTP)
Chevrolet Camaro 1995-96 (SCCA Trans-Am)
Chevrolet Corvette C5-R (GTS/GT1)
Pontiac GTO.Rs (Grand-Am GT)
Pontiac GXP.Rs (Grand-Am GT)
Chevrolet Camaro GT (Grand-Am GT)
Cadillac CTS-V (Pirelli World Challenge GT)
Chevrolet Corvette C6.R (GT1, GT2/LM GTE)
Cadillac ATS-V.R GT3 (Pirelli World Challenge GT)
Chevrolet Corvette C7.R (IMSA GTLM and LM GTE)
Chevrolet Corvette C8.R (IMSA GTLM, GTD Pro and LM GTE)
Chevrolet Corvette Z06 GT3.R (IMSA GTD Pro, GTD, LM GT3 and GT World Challenge America)

Related Research Articles

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 Mans.

The Chevrolet Corvette C7.R is a grand tourer racing car built by Pratt Miller and Chevrolet for competition in endurance racing between 2014 and 2019. It is a replacement for the Corvette C6.R racing car, using the C7 generation Chevrolet Corvette as a base. The C7 road car was noted to incorporate development from the Corvette C6.R, thus those properties also carry over to the race car. The Corvette Racing C7.R raced in the WeatherTech SportsCar Championship in the GT Le Mans (GTLM) class.

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 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 2017 BUBBA Burger Sports Car Grand Prix was an International Motor Sports Association (IMSA)-sanctioned sports car race held on the Long Beach Street Circuit in California, United States, on April 8, 2017 as part of the Long Beach Grand Prix event weekend. The race was the third of twelve scheduled rounds of the 2017 WeatherTech SportsCar Championship, and was held for the Prototype, Grand Touring Le Mans (GTLM) and Grand Touring Daytona (GTD) categories. The race was the shortest of the 2017 WeatherTech Championship calendar.

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 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 2019 Road Race Showcase at Road America 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 4, 2019, as the ninth round of the 2019 WeatherTech SportsCar Championship, and the fifth round of the 2019 WeatherTech Sprint 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 2020 24 Hours of Daytona was an endurance sports car race sanctioned by the International Motor Sports Association (IMSA). The event was held at the Daytona International Speedway combined road course in Daytona Beach, Florida, on January 25–26, 2020. This event was the 58th running of the 24 Hours of Daytona, and the first of 12 races across multiple classes in the 2020 WeatherTech SportsCar Championship, as well as the first of four rounds in the 2020 Michelin Endurance Cup.

The 2020 MOTUL 100% Synthetic Grand Prix was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at the Charlotte Motor Speedway ROVAL in Concord, North Carolina on October 10, 2020. This race was the eighth round of the 2020 WeatherTech SportsCar Championship, and the sixth round of the 2020 WeatherTech Sprint Cup.

The 2020 Cadillac Grand Prix of Sebring was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Sebring International Raceway in Sebring, Florida on July 18, 2020. This race was the third round of the 2020 WeatherTech SportsCar Championship, and the second round of the 2020 WeatherTech Sprint Cup.

The 2021 24 Hours of Daytona was an endurance sports car race sanctioned by the International Motor Sports Association (IMSA). The event was held at Daytona International Speedway combined road course in Daytona Beach, Florida, on January 30–31, 2021. This event was the 59th running of the 24 Hours of Daytona, and the first of 12 races across multiple classes in the 2021 IMSA SportsCar Championship, as well as the first of four rounds in the 2021 Michelin Endurance Cup. Acura scored its first overall 24 Hours of Daytona victory, while Wayne Taylor Racing became the second team to win the race three times in a row.

The 2020 TireRack.com Grand Prix at Road Atlanta was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Road Atlanta in Braselton, Georgia, on September 5, 2020. This race was the sixth round of the 2020 WeatherTech SportsCar Championship, and the second round of the 2020 Michelin Endurance 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 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 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.

The Chevrolet Corvette Z06 GT3.R is a GT racing car designed and built by Pratt Miller Engineering and Chevrolet to primarily compete in the LMGT3 and GTD & GTD Pro in the FIA World Endurance Championship and IMSA SportsCar Championship, respectively. The car was built to GT3 specifications and made its competitive debut at the 2024 24 Hours of Daytona.

Pratt Miller Motorsports is an American auto racing team that currently competes in the LMP2 and the GTD Pro classes of the IMSA SportsCar Championship. It was founded as a division of Pratt Miller Engineering by Gary Pratt and Jim Miller in 1989.

The 2016 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 23, 2016. The race was the eighth round of the 2016 IMSA SportsCar Championship.

References

1 2 3 Dagys, John (16 December 2020). "Pratt & Miller Sold to Oshkosh Corp in $115 Million Deal". Sportscar365. Retrieved 8 January 2022.
↑ Dagys, John (16 November 2021). "Chevy to Limit Corvette Z06 GT3.R Initial Customer Sales". Sportscar365. Retrieved 8 January 2022.
1 2 3 4 "About". Pratt Miller. Retrieved 2025-01-20.
↑ "Corvette Racing by Pratt Miller Motorsports No. 3". IMSA. Retrieved 2025-01-20.
↑ "Corvette Racing by Pratt Miller Motorsports No. 4". IMSA. Retrieved 2025-01-20.
↑ "Pratt Miller Motorsports No. 73". IMSA. Retrieved 2025-01-20.
↑ "Vehicle Development". Pratt Miller. Retrieved 2025-01-20.

External links

Pratt Miller
Corvette Racing Archived 2010-12-24 at the Wayback Machine
Team Cadillac

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[Oshkosh-1] 1 2 3 Dagys, John (16 December 2020). "Pratt & Miller Sold to Oshkosh Corp in $115 Million Deal". Sportscar365. Retrieved 8 January 2022.

[Corvette_GT3-2] Dagys, John (16 November 2021). "Chevy to Limit Corvette Z06 GT3.R Initial Customer Sales". Sportscar365. Retrieved 8 January 2022.

[:0-3] 1 2 3 4 "About". Pratt Miller. Retrieved 2025-01-20.

[4] "Corvette Racing by Pratt Miller Motorsports No. 3". IMSA. Retrieved 2025-01-20.

[5] "Corvette Racing by Pratt Miller Motorsports No. 4". IMSA. Retrieved 2025-01-20.

[6] "Pratt Miller Motorsports No. 73". IMSA. Retrieved 2025-01-20.

[7] "Vehicle Development". Pratt Miller. Retrieved 2025-01-20.

[1]

[2]

[3]

[4]

[5]

[6]

[7]