Face it: you're never going to have a flying car. Even if the Moler Skycar were cheap and common enough for everyone to be able to afford, the first time some bleary-eyed morning commuter spilled coffee on their lap and made a spiraling dive into a kindergarten they'd all be grounded. Permanently. We might get there some day, but the next few generations of tomorrow's cars are going to stay firmly planted on the ground. I'm okay with that. In fact, I like that. After all, it's pretty fun to drive on the ground -- or a lake, if the ice is thick enough.
If we're stuck with such pedestrian things as wheels and tires and fenders, what's th
