The news leaves Red Bull searching for a new power unit partner for its two teams, Red Bull Racing and AlphaTauri.<br>Who uses Honda engines?<br>After pulling out of the sport at the end of 2008 Honda returned to F1 in 2015, the second year of the current hybrid V6 regulations.<br>The manufacturer initially had an exclusive deal with McLaren, but the relationship got off to a bad start, and never ...
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