No commercial airline has completed the 9,929-mile flight without refuelling.

Commercial airline pilots must have at least 1,000 hours before even serving as a co-pilot.

But you get more leg room than you would in economy on a commercial airline, and a comfortable leather seat.

Just as commercial airline pilots must learn to interact with autopilots, which take over on long flights, drivers will have to learn to respond when the car's system cannot cope.

Others are still in the development stage, including apprenticeships in legal services and commercial airline piloting, and are expected to roll out this year or next.