Flying cars may appear like the stuff of sci-fi, yet two models were launched Thursday on the French Riviera, at an event exhibiting "supercars" in Monaco. Dutch and Slovak companies introduced their designs as world premieres in the modest well-heeled realm, where extravagance automakers have gathered until Sunday for the Top Marques showcase event.

Bratislava-based Aeromobil, whose first model introduced two years ago endured an accident, is back with "another generation" of flying vehicle named after the firm which makes it, as per Phys.org,"We are taking reservations from today for deliveries expected in 2020, after the procedure of (administrative) approvals is finished," the Slovak association's representative Stefan Vadocz said.

 The Aeromobil vehicle, six meters in length and with a completely deployed span of nine meters, is a typical four-wheel car which can unfold its wings to change itself into a plane ready to fly two travelers at a cruising velocity of 260km/h for up to 750 kilometers.

 The cost? In the vicinity of 1.2 and 1.5 million euros ($A1.7 to $A2.13), depending upon options picked. Robert Dingemanse is a Dutch competitor who invented the high-tech vehicle type the Pal-V Liberty. whose organization or company is based close Breda in the south of the Netherlands.

 His hybrid auto plane is more compact, at four meters in length, and ought to be deliverable as right on time as next year, once official endorsements are secured. He is already taking orders for a vehicle which will cost in the vicinity of 299,000 and 499,000 euros, as per TechCrunch.

The Dutch flying car is, in reality, a gyrocopter with three wheels and retractable rotor. It can carry two individuals at a cruising rate of 160km/h for between 400-500 kilometers. It is "one of the most secure flying machines on the planet," ready to fly "whatever the climate conditions," say its creators. Clients of the Aeromobil and the Pal-V Liberty will require both a driving permit and a pilot's capability.