Foremost among them this year is a very credible, two-seat flying car.

The 1,100 kg Workhorse Surefly uses an electric quadcopter layout with two contra-rotating propellers on each corner and a range-extending petrol engine, giving it a range of 70 miles and a top speed of 70 mph. The gas engine can then be fueled quickly with petroleum for immediate onward flight.

The Surefly thus could easily become a two-seat sportscar of the skies with a very affordable price tag.

The most comforting factor is the expertise Workhorse has already demonstrated in all the key aspects of the design.