Sebastian Vettel believes he now faces "a steep learning curve" after failing to clock up the miles he had been hoping for with Aston Martin in pre-season testing. Vettel endured a rollercoaster three days at Bahrain's International Circuit that was affected by a sandstorm on Friday, only managing 10 laps on Saturday due to a gearbox issue, and then failing to set a fast lap on Sunday due to the AMR21 encountering a boost pressure problem. Article continues under video It left Vettel suggesting he was "100 laps short" of the ideal amount of running he would have liked going into the first grand prix in Bahrain later this month, and that will likely be a difficult...
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