This immaculate 1986 Porsche 962 IMSA Prototype chassis number HR3 was built by Fabcar Engineering. It was delivered new on July 6, 1986, to Hotchkis Racing at the mid-season Camel Continental 500 at Watkins Glen, by Holbert Racing (Porsche Motorsports North America). The car was sponsored by Wynn’s Engine Oil Products Company. It was tested by Al Holbert and made its debut driven by Jim Adams and John Hotchkis Sr.

This 1986 Porsche 962 HR3 is one of the best-prepared 962’s in existence. It is actively maintained and fully race-ready for the track. It is currently powered by a 3.2-liter single turbo charged 962 engine built by Porsche Motorsport North America. The engine utilizes Porsche 911 GT1 technology, including a forged crankshaft and lower end. It has two-valve cylinder heads, a Garrett turbocharger, air-to-air intercooler, and a Bosch Motronic fuel and ignition management system, it is estimated to produce over 750 horsepower. Which is delivered via a Porsche five-speed transaxle with Metalore axles (said to be stronger than Porsche’s original equipment). Fitted with Penske Racing shock absorbers and Brembo four-wheel disc brakes.

In 1987 Porsche 962 HR3 was involved in a small accident, it was disassembled at the team’s shop and set aside until it was completely repaired in 1989. In 1990, the repaired and rebuilt original chassis HR3 debuted at the 24 Hours of Daytona and raced for the rest of the 1990 and 1991 seasons, finishing 3rd at the 24 Hours of Daytona in 1991. At the end of the 1991 season Porsche 962 HR3 was retired from active competition, until 1997 when it returned to the track for vintage events.

It regularly appeared on the east coast from 1998 to 2001 at Historic Sportscar Racing events. It won the GTP category race at the 2009 Monterey Historics. In 2011 at the Porsche Rennsport Reunion IV, it was the fastest 962 running in the lead pack with the likes of the much newer RS Spyders. In 2016 at the Rolex Monterey Motorsports Reunion, it was the winner of the FIA IMSA GTP class. Porsche 962 HR3 has been actively involved in historic racing including many Rolex Monterey Motorsport Reunion events and most recently the 2023 Porsche Rennsport Reunion at WeatherTech Raceway Laguna Seca.

When the Porsche 962 was introduced in 1984, Fabcar Engineering started to repair monocoques, and eventually built seven monocoques for Al Holbert, Rob Dyson, Bruce Levin, and Hotchkis Racing. These seven HR chassis would prove to be stiffer than the Porsche built chassis, which gained the attention of the Porsche Factory, who subsequently contracted Fabcar to build all their factory Group-C monocoques and carry out all the factory monocoque repairs worldwide.