This discussion may contain spoilers!
Besides the obvious, I found a throwback to Vanawatu from Hit the Road that apparently went over my head until just now.:p It's Myra when she goes into her blah-blah-blah loop!
I'm sure by now everyone has seen Jesse James' hand, the fate of the old Desoto, the swearing in long hand, and even the referance back to the John Murr (sp?) vegetable.
But what other throwbacks have you found to Hit the Road so far?