Red Bull Racing Milton Keynes, England, December 10, 2011 Photo by Mark Thompson/Getty Images Sebastian Vettel signs autographs for fans at the Red Bull Racing Home Run event on December 10, 2011 in Milton Keynes, England 135534278KR015_Red_Bull_Rac.jpgSebastian Vettel (R) and Mark Webber (L) Red Bull Racing Home Run event on December 10, 2011 in Milton Keynes, England 135534278KR008_Red_Bull_Rac.jpg Sebastian Vettel (R) and Mark Webber (L) drive thru the town streets while attending the Red Bull Racing Home Run event on December 10, 2011 in Milton Keynes, England 135534278KR013_Red_Bull_Rac.jpgApproximately 60,000 spectators turned out in Milton Keynes today to see Formula One World Champion Sebastian Vettel and seven-times GP winner Mark Webber drive their Red Bull Racing cars on the city's streets. The duo were joined by Team Principal Christian Horner, who had just returned from the FIA Awards in India with Mark and Seb, and Chief Technical Officer Adrian Newey.