The FIA doubled the Formula One engine capacity limit to 3 litres for the 1966 season and suitable engines were scarce. Brabham used engines from Australian engineering firm Repco, which had never produced a Formula One engine before, based on aluminium V8 engine blocks from the defunct American Oldsmobile F85 road car project, and other off-the-shelf parts. Consulting and design engineer Phil Irving (of Vincent Motorcycle fame) was the project engineer responsible for producing the initial version of the engine. Few expected the Brabham-Repcos to be competitive, but the light and reliable cars ran at the front from the start of the season. At the French Grand Prix at Reims-Gueux, Brabham became the first man to win a Formula One world championship race in a car bearing his own name. Only his former teammate, Bruce McLaren, has since matched the achievement. It was the first in a run of four straight wins for the Australian veteran. Brabham won his third title in 1966, becoming the only driver to win the Formula One World Championship in a car carrying his own name ("cf" Surtees, Hill and Fittipaldi Automotive). In 1967, the title went to Brabham's teammate, New Zealander Denny Hulme. Hulme had better reliability through the year, possibly due to Brabham's desire to try new parts first. The Brabham team took the Constructors' World Championship in both years.