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China Just Turned Off U.S. Supplies Of Minerals Critical For Defense & Cleantech
(cleantechnica.com)
This is a most excellent place for technology news and articles.
We've had flying cars since the 70s, they are called helicopters.
The issue with a flying car for general use, is one of maintenance and safety. If an older car breaks down, it causes a tailback. If a flying car breaks down, it could demolish a school. The higher standards required means higher costs. That means rich people only. The rich use helicopters in exactly that manner.
Uhh we've had helicopters since the 30s.
https://en.wikipedia.org/wiki/Helicopter
True, but they weren't really used much as flying cars till later. I might be wrong on exactly when they moved from military to "rich transport to the race track", however.