This is cool, a drivable airplane is a great idea.

It changes private flight from an expensive hobby to a reasonable transportation option for middle class folks.

Come share my excitement :-)!

Private planes sound awesome. Travel at 100+ mph and go right from airport node to airport node straight over the inefficient curviness and traffic of roads. For example Oakland airport to Truckee is 160 miles direct, 190 miles by car.

The big problem with private planes (cheap Cesna style) isn't the price, it's the inconvenience. Because many private pilots have trouble maintaining an instrument rating, almost any trip you can think of can be delayed by just clouds or fog. Or night time. And even if you get a instrument rating, flying through a storm is terrifying. The restrictions are maybe a bit bureaucratic but flying in weather and at night really are dangerous.

You constantly have this 1/10 chance that your trip will not start or get back on time. By days. It's hardly convenient.

So you flew somewhere and now you want to get back even though it's a little cloudy, one big problem is actually the plane itself. You can't just hop on a commercial flight or greyhound bus because now your plane is stuck on a little airfield somewhere.

Another weird issue is that weather is very local. So it might be foggy in Oakland but clear in Concord. If you could just take off 10 miles away, your whole trip will work out.

This solves both problems, you can drive all the way back in a storm, at night. You can drive over the hill to a blue sky airport. As cool as flying is, being on the ground is safer for everything but a clear still day.

This is not just a rich person thing. It's about $10-15 thousand to get the first level private pilots license. The price for the cheapest piston planes (Cesna/a newish Diamond A40) is as low as $1.10 per mile. (A flight club, that includes gas and insurance). The Diamond A40 sticker price is about $400K, if Terrafugia can keep the price and maintenance at about this level, the rate should settle there.

That's not crazy expensive, car driving ends up to be about $.54 per mile minimum. (Think cheap newish sedan.) This is the IRS driving rate and it's a very good estimate of minimum driving cost. Plus consider that you will be driving farther because you aren't going in a straight line. In terms of affordability it is like renting an SUV in terms of expense. Using Oakland to Truckee, a private plane trip for 2 people would cost about $180 one way. It's not wildly different from renting a car.

This makes the convenience of private flight practical for people who can't afford private jets.

The public policy/national interest aspect is that this would provide much better options to small and mid size towns, who are very poorly served by commercial flights. This is everything from nurse/doctor serving 4 different towns in 4 clinics one day a week to the managers and accountants of a regional retail store.

The flexibility is the 10x improvement, there are other smaller pros too: you can just arrive at airport and drive to a destination without hassling with or paying for rental cars, you can keep your plane in a normal garage without paying for airport parking, and you can get around mountains (difficult even in clear weather) by driving over them.

I don't fly or have a license (have obviously thought about it!), but if there was a flight club with a Terrafugia, I would join.