McLaren are to switch to Mercedes engines from the 2021 season, BBC Sport has learned. McLaren, who have used Renault engines since last year, have secured a deal that will see them powered by Mercedes at least until the end of 2024. The decision has been made as McLaren seek to return to competitiveness after a dip in fortunes in recent years. It revives a partnership that previously ran from 2005 until the end of 2014. After the previous partnership finished, McLaren made an ill-fated switch to Honda which lasted for three years. McLaren, which will see out the final year of its Renault contract in 2020, has based its decision on two key factors - the Mercedes engine has been stronger...
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