Auto oddities

My miscellany folder seems to have accumulated way too many items related -- in one way or another -- to cars, traffic, and/or their future.

When I was little, I so wanted one of these ...
You know what's a nuisance? Keeping car tires properly inflated. Even more of a pain is patching or replacing them when one gets punctured. Hence, I was delighted to see "Airless tire concept could change tires forever." Imagine: an airless tire made from biodegradable materials using a 3-D printer. Wonderful...