The last (and least enjoyed) road-trip book was Tell-All by Chuck Palahniuk. How this book came from the same guy who wrote Fight Club, Rant, and Diary is beyond comprehension. It's almost like Chuck wrote it to entertain himself instead of his readers whose continued loyalty he should be more concerned about. I can only assume that he wanted to test just how loyal his readers were and set out to write an awful book intentionally as some sort of literary experiment.
I don't really have the desire or energy to describe this one. I will say that the one good thing about it is that it's brief, less than 200 pages.