I have some work to do before I can start driving my 1951 F-1 pickup, but I have a feeling it'll take more than 2.5 cents per mile to operate it these days.
For curiosity, I figured how much it cost to drive 7,200 miles in my 2003 F-150. With one oil change at $30, and each $4 gallon of gas getting 16 miles, it worked out to about 25 cents per mile, ten times as much as operating a truck in 1951.