Rebaque HR100
Car

Rebaque HR100

section:car
The Rebaque HR100 was a Formula One car constructed for Team Rebaque, a Mexican Formula One entrant based in Leamington Spa, UK. It was designed by Geoff Ferris with input from John Barnard and built by Penske at their Poole factory. The car was used by Héctor Rebaque in the final three races of the 1979 Formula One season and offered no advantage over his customer Lotus 79.

Team Rebaque was founded by and centered on Héctor Rebaque, a Mexican driver who first drove in Formula One in 1977 for Hesketh. After being dropped by Hesketh following his debut season, Rebaque established his own team. He initially operated by purchasing cars from Team Lotus, acquiring their Type 78 for 1978 and the championship-winning Type 79 chassis for 1979. As of 2026, Rebaque is the most recent owner-driver in Formula 1.

During the 1979 season, Rebaque commissioned Penske to build a bespoke chassis, the HR100. The car's design by Geoff Ferris, with input from John Barnard, was heavily influenced by the Lotus 79 and intended as a development of that design. Ferris updated the sidepods and skirts, modified the front of the monocoque, and incorporated a larger fuel tank. It also incorporated elements of the Williams FW07's sidepods. The car was powered by a Ford Cosworth DFV engine.

The HR100 was unveiled at Zandvoort in August 1979, though it was unfinished and present primarily for sponsors. It ran for the first time at the Italian Grand Prix at Monza, where it suffered teething problems and Héctor Rebaque was the slowest qualifier. Ian Dawson had the car running properly for the Canadian Grand Prix at Montreal, where Rebaque qualified 22nd. He retired after 26 laps due to a broken engine mount. At the final Grand Prix of the season at Watkins Glen, the car was not quick enough in the second practice session after the first was rained off, and it failed to qualify. The car offered no advantage over the customer Lotus 79.

Team Rebaque closed at the end of the 1979 season. Héctor Rebaque moved to the Brabham team midway through the 1980 season, taking the place of Ricardo Zunino, and retained the drive for 1981. He later moved to CART, winning at Road America in his first season. The HR100 remains on display at his home in Mexico.

Over its full existence, Team Rebaque participated in 30 Grands Prix and qualified to race on 19 occasions. Its best championship finish was sixth place at the 1978 German Grand Prix, which earned one World Constructors' Championship point. This point did not contribute to the Lotus-Ford constructors' total under the rules of the time. The team did not contribute to Lotus-Ford's 1979 points total either.

This article is based solely on the supplied corpus. No external sources were consulted; claims that could not be substantiated against the corpus were omitted under the drop-the-claim rule.

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