A Triumph (L) and a Ravat (R) motorcycles pass by the Chateau de Vincennes, outside Paris, on July 29, 2012, during a vintage cars parade as part of the fifth summer edition of the "Traversee de Paris Estivale" ("Summer Paris Crossing"), the largest gathering of classic vehicles in the French capital streets. AFP PHOTO / JACQUES DEMARTHON        (Photo credit should read JACQUES DEMARTHON/AFP/GettyImages)