later be a Formula One champion Carroll Shelby, creator of the Shelby Cobra and 1959 24 Hours of Le Mans winner, broke his arm while practicing for the 1954 event Dan Gurney and Richie Ginther, American road racers who would one day drive for Ferrari in Formula One Jean Trévoux, Robert Manzon, Louis Chiron from France, winners of the 24 Hours of Le Mans as well as major international rallies Hermann Lang, Karl Kling and Hans Herrmann from Germany Piero Taruffi, Umberto Maglioli and Felice Bonetto, all already famous Italian race drivers. Revival The race was resurrected in 1988 by Pedro Dávila, Loyal Truesdale, and Eduardo de León Camargo, and runs a 7-day, route aping some of the original course. It is run with official backing on special closed stages of the public road network and fast transit sections through central Mexico until recently at unlimited speeds approaching . The race is competed by 80 to 100 cars organised into 10 classes, which are differentiated by car age and authenticity; virtually any car with a classic bodyshell is eligible. The bulk of entries are provided by 1950s and '60s American stock cars; the most popular shapes are the 1953/54 Studebaker Starliner hardtops and Starlight pillared coupes, originally designed by a team led by famed industrial designer Raymond Loewy, because of their exceptional aerodynamics. This is best proven by the fact that as of 2016, out of 29 modern-era races, 22 have been won by Studebakers. Other common European entries include Alfa Romeo Giuliettas, Jaguar E-types, Porsche 356s & 911s. Rarer cars included Saab 96s, Volvo PV544s, and Jaguar MkII saloons. Porsche 911 and classic Ford Mustangs are extremely popular cars. However, despite the vintage appearance of the cars, often they conceal underpinnings more closely related to modern NASCAR entries. Tuned V8 engines of more than are common, especially in the American cars, and the cars are often created especially for this race and usually ineligible for true vintage events elsewhere. Even less modified cars often have modern disc brakes at all four corners and coolant upgrades to help them survive the punishing course. Six-point roll cages, racing seats, fire-suppression systems, and fuel cells are required in most classes. Drivers and navigators are required to wear two- or three-layer fire-resistant suits, HANS devices, and label their helmets, uniforms, and respective sides of the car with their blood types and allergies. The