 If you liked
Oban Star-Racers
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 ...then you might like
Bakusou Kyoudai Let's & Go
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"Bakusou Kyoudai Let's & Go" and "Oban Star-Racers" are both about a group of very motivated young people competing in races where they make friends along their journey towards victory.
It is notable to mention that mechanics and technicians play large roles in these two anime series, as they are the backbone of any good race team.