Red Bull/Getty Images Sebastian Vettel is set to start this weekend's United States Grand Prix from the pit lane as Red Bull considers changing his Renault Power Unit, leading to the prospect that he will sit out qualifying. 2014 regulations state that drivers will receive a 10 place grid penalty should they use a sixth version of any of the components which comprise the Power Units, but Vettel is likely to change every component in the Power Unit for a sixth time, effectively meaning he will race with an entirely new system. But doing so means that drivers must start from the pit lane, leading to the probability that the 2013 race winner will sit out qualifying. "It’s to be seen,...
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