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, unusually, 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.