I think the most noticeable difference between the motoring culture of the 60's and now, is the ratio of big SUV's to the population.
Remember in 1966 when Jeep introduced the Super Wagoneer? It had a V8 and 4 doors, 4x4, a roof rack and weighed 2 tons. http://inlinethumb56.webshots.com/43767/2184521140012516020S600x600Q85.jpg <http://en.wikipedia.org/wiki/Jeep_Wagoneer> Only a hand-full of rich outdoor enthusiast could afford one and it was a limited production. Today, there are over 20 SUV's that weigh more than the Super Wagoneer, and there are millions of them on the road. The Excursion, The Expedition, The Armada, The Suburban, The Land Rover, The Land Cruiser, The Sequioa, The MXT, The Hummer H1, etc. Crack dealers prefer them and add gas guzzling tires to them. The Black Panthers prefer them. Military security agencies prefer them. Soccer moms prefer them. Then there are the regular SUV's that have large V6's, big tires, un-necessary AWD. Also, look at how prominent the national bus and train system was back in the 60's. When was the last time you looked forward to a 8 hour bus trip to visit a relative? I have ridden 3 sight-seeing trains, but never for transportation. Would you consider going to the NSS Convention from Austin to Lake City, by Greyhound bus? David