In the 1960s I saw an animated film on American TV, I think on The Wonderful World of Disney, that showed the future of road-building. It may have dated to the 1950s. [Among other projected advances, there was a large machine that obliterated everything in its path by shining a road-wide beam of light ahead of it -- presumably a "heat ray" rather than a laser -- and leaving a new road behind it. My fragmented memory has a striking scene of this machine cutting through the Amazon rainforest at night, and it says much about those times that the theme was entirely one of progress, with not a thought for the environment, wildlife, or original inhabitants of the region.]
Another scene that I think was from the same film was not intended to be taken seriously. It had a car with concrete wheels bouncing along a rubber highway in place of the usual rubber-tired wheels rolling over a concrete highway. What was this movie?
UPDATE: I evidently conflated two memories in this question. As both have been answered, and the answers are different, I have split the question to allow both to be properly credited. I have changed the header of the original question, which was answered first, to focus on the car with concrete wheels on a rubber highway. The memory in square brackets has a different answer.