Pratt & Miller Engineering and Fabrication is a company formed by Gary Pratt and Jim Miller in 1989. Based in New Hudson, Michigan, they have been one of General Motors official racing teams since 1999 when they were key in the development of the Chevrolet Corvette C5-R. Today, Pratt & Miller constructs, maintains, and runs the United SportsCar Championship Corvette Racing team with Chevrolet Corvette C7.Rs as well as the Pirelli World Challenge Team Cadillac CTS-Vs. The company also built the Pontiac GTO.Rs and Pontiac GXP.Rs, and later the Chevrolet Camaro GT/GS.R for various teams in the Rolex Sports Car Series. The company built and ran the Chevrolet Corvette C6.R in the American Le Mans Series as well. The company also did work on the development of the Qvale Mangusta and Ford GT. Since their alliance with General Motors, Pratt & Miller have won numerous championships and famous racing events. Corvette Racing has won their class at the 24 Hours of Le Mans eight times, claimed the overall victory at theRolex 24 at Daytona in 2001, and won seven straight American Le Mans Series championships. Team Cadillac won the 2005 Speed World Challenge in the team's debut season, while The Racer's Group, running Pratt & Miller-built Pontiac GTO.Rs, 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.

The Chevrolet Corvette (C6) is the sixth generation of the Corvette sports car that was produced by Chevrolet division of General Motors for the 2005 to 2013 model years. It is the first Corvette with exposed headlamps (as opposed to hidden headlamps) since the 1962 model. Production variants include the Z06, ZR1, Grand Sport, and 427 Convertible. Racing variants include the C6.R, an American Le Mans Series GT1 championship and 24 Hours of Le Mans GTE-Pro winner. The Corvette C6 featured new bodywork with exposed headlamps, revised suspension geometry, a larger passenger compartment, a larger 5,967 cc (364.1 cu in; 6.0 L) V8 engine and a higher level of refinement. It is 5.1 inches (13 cm) shorter than the C5, but the wheelbase was increased by 1.2 inches (3 cm). It is also one inch (2.5 cm) narrower. The new LS2 engine has a power output of 400 hp (298 kW) at 6,000 rpm and 400 lb⋅ft (542 N⋅m) of torque at 4,400 rpm. Like the C5, the Corvette C6's suspension consisted of independent unequal-length double wishbones with transverse fiberglass mono-leaf springs and optional magnetorheological dampers. With an automatic transmission, the Corvette achieves 15 mpg‑US (16 L/100 km; 18 mpg‑imp) / 25 mpg‑US (9.4 L/100 km; 30 mpg‑imp) mpg (city/highway) of fuel economy; the manual-transmission model gets 16 mpg‑US (15 L/100 km; 19 mpg‑imp) / 26 mpg‑US (9.0 L/100 km; 31 mpg‑imp) mpg of fuel economy. The Corvette's manual transmission is fitted with Computer Aided Gear Shifting (CAGS), obligating the driver to shift from 1st gear directly to the 4th gear when operating at lower RPM. This boosts the EPA's derived fuel economy thus allowing the buyer to avoid paying the "gas guzzler" tax. GM badges were added to the car in 2006. Beginning with the 2008 model year, the Corvette received a new engine, the LS3. With displacement increased to 6,162 cc (376.0 cu in; 6.2 L), power was increased to 430 hp (321 kW) at 6,500 rpm and 424 lb⋅ft (575 N⋅m) of torque at 4,600 rpm, or 436 hp (325 kW) and 428 lb⋅ft (580 N⋅m) with the optional vacuum actuated valve exhaust. The previous Tremec T56 transmission on manual Corvettes was replaced with a new version, the TR6060, in the 2008 model year. Manual Corvette models now had improved shift linkage; the automatic model was set up for quicker shifts, and (according to Chevrolet) accelerates from 0 to 60 mph (97 km/h) in 4.0 seconds, faster than any other production automatic Corvette model. From 2008 onward, the steering was revised for improved feel and the wheels were updated to a new five-spoke design.[9] The last Corvette C6, a white 427 convertible, was completed on February 28, 2013.

The Chevrolet Corvette, known colloquially as the Vette, is a sports car manufactured by Chevrolet. The car has been produced through seven generations. The first model, a convertible, was designed by Harley Earl and introduced at the GM Motorama in 1953 as a concept show car. Myron Scott is credited for naming the car after the type of small, maneuverable warship called a corvette. Originally built in Flint, Michigan andSt. Louis, Missouri, the Corvette is currently manufactured in Bowling Green, Kentucky and is the official sports car of the Commonwealth of Kentucky.

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