It would have to be either the mechanic or the driver (they didn't have names in the movie) in "Two Lane Blacktop". It may sound weird but man, they lived a life I envied. Just two guys in a car, across the country, making money by drag racing a car that looked (to the unsuspecting eye) like just another clapped out beater. Cheap gas, open road, massive big block, a four speed, and a drag strip now that would be a life.
Patrick