Honda is returning to Formula One, confirming that it will renew its partnership with McLaren and supply the British team's engines from 2015.
The Japanese car maker is developing the 1.6-liter turbocharged V6 engine at its factory in Tochigi.
Honda shocked F1 in 2008 by announcing it was pulling its team out of the elite racing series over the spiraling costs of running a team and turmoil in the car industry, a move followed by other car makers.
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It led to one of F1's most turbulent periods, prompting bitter rows over how to reduce costs – an issue that continues to dog teams.
McLaren will continue with Mercedes engines next season, but then switch to Honda in an attempt to revitalize the team's challenge for the world championship, which has been dominated in the past three years by Red Bull and its Renault engines.
The McLaren-Honda partnership ruled F1 between 1988 and 1992, winning eight world championships, during which it took the winner's podium in 44 out of 80 Grands Prix.
In 1988, McLaren drivers Ayrton Senna and Alain Prost won 15 out of the 16 Grands Prix driving the McLaren-Honda MP4/4.
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But he denied this would cause friction with Mercedes as McLaren begins to focus on its Honda relationship. "We recognize our mutual dependence on each other," he said. "There is a large amount of high regard behind the scenes between the two corporate organisations."
McLaren, he added, "will operate in a scrupulous way between the two organisations".