In March 2006, the Honda Racing F1 Team, formerly British American Racing, announced that Walker would become its team ambassador for half of the 2006 season's 18 Grands Prix, starting with the San Marino Grand Prix in April. Walker welcomed Honda Racing's VIP guests and entertained them with his F1 commentary. He was Sky Sports' commentator for their coverage of Grand Prix Masters, performed commentary duties of the Australian Grand Prix for the Australian television broadcaster Network Ten in 2006 and 2007, and voiced the Clipsal 500 V8 Supercars race in Adelaide.