When driving, "Six Days on the Road," "King of the Road" and such-like. I prefer the older stuff. The Merle Haggard/Johny Cash/Waylon Jennings generation had a pretty good idea of what it was like to live an honest, sorta-nomadic life, and produced some good songs about it.
I distinctly recall an occasion -- I forget if we were rolling towards Maine with tiny house in tow, or haphazardly towing a (really) old diesel F350 on a trailer in a blizzard across Pennsylvania -- "I've Been Everywhere" came on. My buddy, the stone-cold cynic, gave me a very dark, old-fashioned look, and said, "Yeah. *That's* your song," by way of final condemnation.