Brabham and Tauranac set up a company called Motor Racing Developments (MRD), which produced customer racing cars, while Brabham himself continued to race for Cooper.
MRD produced cars for Formula Junior, with the first one appearing in mid-1961.
Brabham left Cooper in 1962 to drive for his own team: the Brabham Racing Organisation, using cars built by Motor Racing Developments.
A newly introduced engine limit in Formula One of 1500 cc did not suit Brabham and he did not win a single race with a 1500 cc car.
His team suffered poor reliability during this period and motorsport authors Mike Lawrence and David Hodges have said that Brabham's reluctance to spend money may have cost the team results, a view echoed by Tauranac.
During the 1965 season, Brabham started to consider retirement to manage his team.
Dan Gurney took the lead driver role, and the team's first world championship win, while Brabham gave up his car to several other drivers towards the end of the season.
At the end of the season, Gurney announced his intention to leave and set up his own team and Brabham decided to carry on.

In 1966, a new 3-litre formula was created for Formula One.
The new engines under development by other suppliers all had at least 12 cylinders and proved difficult to develop, being heavy and unreliable.
Brabham took a different approach to the problem of obtaining a suitable engine: he persuaded Australian engineering company Repco to develop a new 3-litre eight-cylinder engine for him.
Repco had no experience in designing complete engines.
Brabham had identified a supply of suitable engine blocks obtained from Oldsmobile's aluminium alloy 215 engine and persuaded the company that an engine could be designed around the block, largely using existing components.
Brabham and Repco were aware that the engine would not compete in terms of outright power, but felt that a lightweight, reliable engine could achieve good championship results while other teams were still making their new designs reliable.

The combination of the Repco engine and the Brabham BT19 chassis designed by Tauranac worked.
At the French Grand Prix at Reims-Gueux, Jack Brabham took his first Formula One world championship win since 1960 and became the first man to win such a race in a car of his own construction.
Only his two former teammates, Bruce McLaren and Dan Gurney, have since matched this achievement.
It was the first in a run of four straight wins for the Australian veteran.
The 40-year-old Brabham was annoyed by press stories about his age and, in a highly uncharacteristic stunt, at the Dutch Grand Prix he hobbled to his car on the starting grid before the race wearing a long false beard and leaning on a cane before going on to win the race.
Brabham confirmed his third championship at the Italian Grand Prix and became the only driver to win the Formula One World Championship in a car that carried his own name.

The season also saw the fruition of Brabham's relationship with Japanese engine manufacturer Honda in Formula Two.
After a generally unsuccessful season in 1965, Honda revised their 1-litre engine completely.
Brabham won ten of the year's 16 European Formula Two races in his Brabham-Honda.
There was no European Formula Two championship that year, but Brabham won the Trophées de France, a championship consisting of six of the French Formula Two races.

In 1967, the Formula One title went to Brabham's teammate Denny Hulme.
Hulme had better reliability through the year, possibly due to Brabham's desire to try new parts first.

Despite taking pole position in the first two rounds, mechanical problems halted his chances of victory.
He spun numerous times in South Africa, and at Monaco, his engine blew up at the start, and the win went to his teammate Denny Hulme.
At the Dutch Grand Prix, he scored his first podium of the season, with second place, behind Scotsman Jim Clark.
He retired in the Belgian Grand Prix with another blown engine.
He fixed this by winning the French Grand Prix at the Bugatti Circuit in Le Mans.
He came fourth at the British Grand Prix, beh
Brabham and Tauranac set up a company called Motor Racing Developments (MRD), which produced customer racing cars, while Brabham himself continued to race for Cooper. MRD produced cars for Formula Junior, with the first one appearing in mid-1961. Brabham left Cooper in 1962 to drive for his own team: the Brabham Racing Organisation, using cars built by Motor Racing Developments. A newly introduced engine limit in Formula One of 1500 cc did not suit Brabham and he did not win a single race with a 1500 cc car. His team suffered poor reliability during this period and motorsport authors Mike Lawrence and David Hodges have said that Brabham's reluctance to spend money may have cost the team results, a view echoed by Tauranac. During the 1965 season, Brabham started to consider retirement to manage his team. Dan Gurney took the lead driver role, and the team's first world championship win, while Brabham gave up his car to several other drivers towards the end of the season. At the end of the season, Gurney announced his intention to leave and set up his own team and Brabham decided to carry on.
In 1966, a new 3-litre formula was created for Formula One. The new engines under development by other suppliers all had at least 12 cylinders and proved difficult to develop, being heavy and unreliable. Brabham took a different approach to the problem of obtaining a suitable engine: he persuaded Australian engineering company Repco to develop a new 3-litre eight-cylinder engine for him. Repco had no experience in designing complete engines. Brabham had identified a supply of suitable engine blocks obtained from Oldsmobile's aluminium alloy 215 engine and persuaded the company that an engine could be designed around the block, largely using existing components. Brabham and Repco were aware that the engine would not compete in terms of outright power, but felt that a lightweight, reliable engine could achieve good championship results while other teams were still making their new designs reliable.
The combination of the Repco engine and the Brabham BT19 chassis designed by Tauranac worked. At the French Grand Prix at Reims-Gueux, Jack Brabham took his first Formula One world championship win since 1960 and became the first man to win such a race in a car of his own construction. Only his two former teammates, Bruce McLaren and Dan Gurney, have since matched this achievement. It was the first in a run of four straight wins for the Australian veteran. The 40-year-old Brabham was annoyed by press stories about his age and, in a highly uncharacteristic stunt, at the Dutch Grand Prix he hobbled to his car on the starting grid before the race wearing a long false beard and leaning on a cane before going on to win the race. Brabham confirmed his third championship at the Italian Grand Prix and became the only driver to win the Formula One World Championship in a car that carried his own name.
The season also saw the fruition of Brabham's relationship with Japanese engine manufacturer Honda in Formula Two. After a generally unsuccessful season in 1965, Honda revised their 1-litre engine completely. Brabham won ten of the year's 16 European Formula Two races in his Brabham-Honda. There was no European Formula Two championship that year, but Brabham won the Trophées de France, a championship consisting of six of the French Formula Two races.
In 1967, the Formula One title went to Brabham's teammate Denny Hulme. Hulme had better reliability through the year, possibly due to Brabham's desire to try new parts first.
Despite taking pole position in the first two rounds, mechanical problems halted his chances of victory. He spun numerous times in South Africa, and at Monaco, his engine blew up at the start, and the win went to his teammate Denny Hulme. At the Dutch Grand Prix, he scored his first podium of the season, with second place, behind Scotsman Jim Clark. He retired in the Belgian Grand Prix with another blown engine. He fixed this by winning the French Grand Prix at the Bugatti Circuit in Le Mans. He came fourth at the British Grand Prix, beh
Jack Brabham