The Brabham BT7 was a Formula 1 racing car built in 1963 by Brabham and was used until 1966.
After the initial success with the BT3, developed by Ron Tauranac for the Formula 1 season, a new single-seater racing car was designed.
Based on the BT3, the BT7 was changed in a number of key areas. The suspension was revised and the vulnerable Colotti Francis transmission was replaced with a Hewland 5-speed quick shift gearbox.
Two Brabham BT7s were built, both of which were given a new body.
The car's debut was at the Monaco Grand Prix with Dan Gurney at the wheel. Gurney went from sixth position on the grid, but resigned after a loss of the differential. At the next race, the Belgian Grand Prix, Gurney drove the BT7 to third. After more top rankings from Gurney, the Brabham team reached the end of the year in third place in the constructors championship.
In 1964, the BT7 was one of the fastest cars of the season, but was not particularly stable. Gurney did win, his successes in France and Mexico, two world championship races, but he and Brabham had many technical problems.
This is why at the end of the year they were only fourth place in the constructors championship.
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