Renault Engines Under Serious Threat as Red Bull, Lotus Quit Rumours Grow

Renault-powered cars have won 12 Formula One Constructors' Championships, second only to Ferrari's 16. However, the French manufacturer looks to be in trouble, as they have struggled to produce a reliable, competitive power unit under the new F1 regulations. For 2014, Renault is supplying power units to four teams: Red Bull, Toro Rosso, Lotus and Caterham. It is not a coincidence that these four teams, along with Sauber, lead the way in number of DNFs this year. But Renault's problems started long before the season began. Multiple issues during preseason testing meant that the French engines had far less running than their rivals. According to Sky Sports, Mercedes power units did 17,994 km of running, Ferrari did 10,214 km (with only three ...

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