I should have broken it out by vehicle:
1971 Mercury Comet coupe: 50k (first car and I still have it.
)
1984 Lincoln Mark VII: 40k
1995 Ford Escort 3 door: 145k
1959 Ford F-100: 3k
1988 RX-7: 50k
2007 Scion tC: 80k (current driver)
I'm guessing I have at least 20k more on rentals and family cars. Among those are a 1966 Mustang coupe and a 1967 Mustang convertible.
My last big roadtrip was after CanJam last year. I took the rental over to Taliesin and the House on the Rock, then back up around the Upper Peninsula, up to Wawa, Canada, then back down around the lake, into Ohio, Indiana, and back to Chicago. Loved it!
My favorite was about four years ago. I flew into Memphis, rented a car, and headed over to Nashville to see the Opry. From there, I took the Natchez Trace and spent Memorial Day at Vicksburg. Got back on the Trace and went to Natchez. From there, I went to New Orleans, and back up through Alabama to return to Memphis. Really fun trip and the Natchez Trace just might be my favorite National Park.
Though I haven't done it in a single trip, I've driven the entirety of Highway 1 - the entire West Coast. I will knock off the Gulf Coast and East Coast sooner or later. I also want to take a week to drive the entire coast of Florida.
In a few weeks, I'm going to drive up through Las Vegas, then cut west onto Highway 395 and join my family in Mammoth. Am looking forward to it.