Almost a good idea, but I can see problems with this vehicle.
First off , the 'car' part - will get a spanking from the yobs in your local area for looking daft.
Has to pass various safety guidelines in the event of an accident or road crash.
Any small knock would ( supermarket ding etc) would render it useless for flight capabilities.
Now the 'Flyer' part, yes training would be great, but 20 hours? not long enough to learn what you really need to know.
In a city environment unless you know an area well enough for 'average' traffic flow you 'd have to land at a nearby airfield before driving home
or to work or even to the shops. Could cause problems for fuel consumption, and waste time commuting.
Trying to land on a straight road is great if you have them clear enough, in the UK that is a total NO GO.
Don't get me wrong I wholeheartedly support and understand the companies for making these vehicles but until a VTOL ( Vertical Take Off and Landing )
version is created this vehicle serves no geneuine 'civilian' consumer purpose.
Fair play to Terrafugia for at least trying.