Red Bull/Getty Images Red Bull team principal Christian Horner has urged engine supplier Renault to improve their performance after a disappointing result at the Austrian Grand Prix. Daniel Ricciardo came home in eighth place while Sebastian Vettel's RB10 suffered a power unit problem on the second lap of the race. Vettel was able to get going after his issue but he lost a full lap, eventually retiring from the race mid-distance. His third retirement leaves him over 100 points behind championship leader Nico Rosberg. "We’ve had another issue today but at the end of the day we’ve won all four world championships and all our races with Renault and we have to trust them to get over...
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