I wrote in three months ago for info on our trip received great ideas. We, two australian seniors husband and wife, bought an old car, no problems at all with registering, etc although lots of people said it could not be done. The car, a classic, is being shipped home as we speak.
We flew to LA, then to eastern states. flew to NY had 10 fab days there. Caught a bus to Washington, collected car, began trip on the Blue Ridge Parkway, all through the antebellum states, Savannah, St Augustine, Kennedy Space Centre across Florida to New Orleans, then travelled north on Natchez Trace Parkway, called into Memphis, Nashville, St Louis, spent a few days in Chicago, drove across Iowa to South Dakota, Badlands, Black Hills, across to Yellowstone, Grand Tetons, back across to near Denver, Rocky Mountains National Park, all the way through Colorado, into Utah, North to Moab, Arches, and Canyonlands, south again to Monument Valley, Grand Canyon, Bryce, Zion, Las vegas and LA, home!
Apart from a few nervous moments when GPS took us into areas we would rather not have been, and minor car maintenance issues,we had no problems, despite being in a 50 year old car. We saw the most amazing, fantastic scenery and were welcomed every where we went. Wherever possible we travelled on minor roads, and I mean very minor, we saw some interesting sights that way and met lots of lovely people.
I cannot recommend driving across America more highly. Highlights were definitely Monument Valley, Yellowstone and Zion, with Zion the standout.