Prince Harry revved up his engine at the F1 Grand Prix in Austin, Texas. The Duke of Sussex toured the Mercedes-AMG Petronas F1 Team's garage on a solo adventure prior to the Circuit of the Americas race Sunday. Prince Harry, an avid car collector and longtime F1 enthusiast, appeared to be right at home among a bevvy of racing fans as his wife, Meghan Markle, opted to sit this lap out.