With a rapidly expanding grid and only four engine suppliers left in the series, the burden on each is getting mighty heavy. Renault only supplies its own team and Red Bull, but four teams are running under Cosworth power, three under Ferrari and another three run Mercedes engines. Those parameters are expected to change next season as Red Bull looks for alternatives to Renault engines, which have proven an unreliable liability so far this season, and have been known to be keen on Mercedes power
As it turns out, the addition of four new teams, the departure of BMW Sauber and a massive game of musical chairs in the driver's market aren't the only big changes in store next year in Formula One. As this year's championship winds to a close, reports emerge that several teams are switching their engine partners for next year.
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