Hm, I thought I posted in this thread, but it seems I forgot to click “Post”. I had written that the project wouldn't be that popular because it is worse than a car and worse than a small aeroplane, which is a general problem when you're trying to create hybrids, and you'd have to get closer to a real car and to real aeroplane to make it a tempting offer. Thought I'd be willing to buy one just for the awesomeness of it.
Now though, I'm just thinking how awesome could this thing be if the following thing happen:
1. A technology for hypercapacitors get invented and allows this to go all-electric with little weight addition and an increased flying and driving range.
2. The air speed of this thing gets doubled or quadrupled. If you forget the ability to take a short cut, going at 172 km/h is not that much of an improvement.
3. Short speedways for landing and take-off get added beside highways. Is that very unsafe?
4. Make them 5-seated and allowing heavier load. I guess that would be quite taxing on the wings, but still doable, right?
(Now, make it fully pressurized, put a fusion engine and a booster inside, and make it go above LEO and back, and I'd be nearly satisfied.

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