The great Los Angeles-to-Phoenix off-road race (more commonly known as "The Cactus Derby") was another of the terrific classics from the sport's early days. In its 1914 edition, track racing legend and barnstormer Barney Oldfield entered the same Stutz racer he had piloted to fifth place in that year's Indianapolis 500.
If you are not familiar with Conceptcaz.com, do yourself a favor and check it out. Beautiful photography of cars, many of which are vintage machines dating back to the earliest years of automobiles and racing. One of my favorites from the early days is the Fiat S74 that was driven to victory in the 1911 American Grand Prize in Savannah, Georgia.