The team was established in 1989 by Gary Pratt and Jim Miller as a subsidiary of their engineering company, Pratt Miller. In 1997, Pratt Miller entered a defining partnership with General Motors and its Chevrolet subsidiary to create a new sportscar racing program built around the Chevrolet Corvette. This collaboration gave birth to Corvette Racing in 1997 and would shape the team's identity for more than two decades.
The alliance with General Motors transformed Pratt Miller Motorsports into one of the most prolific teams in American sportscar racing. Beyond Corvette Racing, the team also supported Team Cadillac, which accumulated seven Pirelli World Challenge championships. The Racer's Group, running Pratt Miller-built Pontiac GTO.Rs, won the Rolex Sports Car Series championship in 2006. On the engineering side, GM Racing's Katech-built LS7.R small-block engine — which powered the C5-R and C6.R Corvettes in the GTS and GT1 classes of the American Le Mans Series and the 24 Hours of Le Mans — was named the 2006 Global Motorsport Engine of the Year.
Under Pratt Miller's management, Corvette Racing became a dominant force in international sportscar competition. The team won the 24 Hours of Le Mans nine times in the GTS, GT1, and LMGTE Pro and Am categories. The 2001 Rolex 24 at Daytona brought Corvette Racing the overall victory, one of the program's most celebrated results. The team also amassed seven consecutive American Le Mans Series championships across the GTS and GT1 classes.
Following the 2009 Le Mans, Corvette Racing moved from the GT1 class to GT2, and engine builds were brought in-house. The program continued winning, with ALMS GT Team and Manufacturer championships in 2012 and 2013, as well as multiple IMSA GTLM titles through 2021.
The exclusive relationship with General Motors came to an end in 2023, after which Pratt Miller Motorsports began broadening its partnerships across multiple manufacturers and programs.
With the conclusion of the GM partnership, Pratt Miller Motorsports moved into a new phase of operation. For the 2025 IMSA SportsCar Championship season, the team expanded into the LMP2 class, fielding the No. 73 Oreca 07 with a driver lineup including Chris Cumming, Pietro Fittipaldi, Callum Ilott, and James Roe. The team also continued in GTD Pro competition, extending its active presence in North American sportscar racing beyond its decades as a manufacturer-aligned operation.
Pratt Miller Motorsports has amassed an extensive record of major victories across the principal North American and international sportscar series:
American Le Mans Series: GTS class titles in 2001, 2002, 2003, 2004; GT1 titles in 2005, 2006, 2007, 2008; GT class titles in 2012 and 2013
Rolex Sports Car Series: GT titles in 2006 and 2008 (Driver)
Pirelli World Challenge: GT titles in 2012, 2013, 2014, and 2015 (Driver)
IMSA SportsCar Championship: GTLM titles in 2016, 2017, 2018, 2020, 2021; GTD Pro in 2025
FIA World Endurance Championship: LMGTE Am title in 2023
24 Hours of Le Mans victories: 2001 (GTS), 2002 (GTS), 2004 (GTS), 2005 (GT1), 2006 (GT1), 2009 (GT1), 2011 (LMGTE Pro), 2015 (LMGTE Pro), 2023 (LMGTE Am)
Rolex 24 at Daytona victories: 2001 (GTS/overall), 2015, 2016, 2021 (GTLM)
12 Hours of Sebring victories spanning multiple decades, including 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2013, 2015, 2016, 2017, and 2022
Petit Le Mans victories: 2000, 2001, 2002, 2004, 2005, 2007, 2008, 2010
Pratt Miller Motorsports built its reputation as the engineering and operational backbone of American GT racing, combining manufacturing expertise through Pratt Miller Engineering with race-winning performance on track. The Corvette Racing program it created and operated stands as one of the most successful manufacturer-backed sportscar efforts in motorsport history, with nine Le Mans class wins across a span of more than two decades.