Christian Horner has slammed Renault for “unacceptable” reliability and performance after a disappointing Austrian Grand Prix. Red Bull's home race saw Sebastian Vettel retire with an electrical issue having failed to get out of Q2 in qualifying, while Daniel Ricciardo was limited to eighth place having won in Canada a fortnight before. With the Mercedes power unit dominant in Austria, Horner said the job Renault has done is not good enough and called for changes at the engine manufacturer. “It's frustrating that we're in the situation that we are,” Horner said. “We've obviously had a lot of success with Renault. We've won all the races and all the championships that we've...
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