Renault says it needs to improve the reliability of its V6 Turbo power-unit 'across the board' and admits that the problems experienced at the Australian Grand Prix are not acceptable. Three of the eight cars made it to the chequered flag and following Daniel Ricciardo's exclusion from second place, only two Renault-powered machines finished in the points on Sunday. Kamui Kobayashi's retirement from the race on lap one was the only one not related to a problem with the power-unit. Sebastian Vettel was the first driver to experience problems after suffering a misfire. The four-time champion was forced to call it a day on lap three. The second Caterham of Marcus Ericsson failed to finish...
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