BARCELONA, Spain - Lewis Hamilton has outpaced Mercedes team mate Nico Rosberg to top the practice times ahead of the 2015 Spanish Formula 1 GP despite being worried about his car's inconsistent performance in gusting wind at the Circuit de Catalunya.
His concern was over his car's set-up and the weather condition.
Asked if he was happy with his Mercedes' balance, he replied: "At the moment, I'm not. I don't really know why... it felt very inconsistent throughout the lap because the wind is up and down. In some places gusts, sometimes not."