Look back at Tour de France

A Le Credit Lyonnais (LCL) vehicle from the publicity caravan of the Tour de France travels past spectators at the start of the third stage of the 99th Tour de France cycling race between Orchies and Boulogne-sur-Mer July 3, 2012. Cycling sponsors can enjoy great value for money if they are willing to trust that the sport is finally leaving its dark doping days behind.[Photo/Agencies]

The Tour de France publicity caravan drives past spectators at the start of the 181.5-km (112-mile) second stage of the 92nd Tour de France cycling race between Challans and Les Essarts in this July 3, 2005 file photo. Cycling sponsors can enjoy great value for money if they are willing to trust that the sport is finally leaving its dark doping days behind.[Photo/Agencies]