Steer clear when the royal family is behind the wheel! A motorcycle cop from Kate Middleton and Prince William’s entourage hit and seriously injured an 83-year-old woman in London on June 17. “Their Royal Highnesses have sent their very best wishes to [the victim] and her family and will stay in touch throughout every stage of her recovery,” they said in a statement. But it’s definitely not the first time the family has been hell on wheels: In January, Prince Philip, 98, flipped his Land Rover after crashing into another car in Norfolk, leading to minor injuries to the driver and passenger of the other vehicle. And back in 2015, the queen, now 93, was spied impatiently driving around a family (above) that was in the road on her way…