There is something in the air, and in the vast halls that make up the mile long Frankfurt motor show, you can almost smell it.

If you believe those who will deliver the future of the car, we are on the eve of a revolution, one that will leave our children – or perhaps our children’s children – goggling at the profligate inefficiencies of the way we use our cars to this day.

And there is no doubt the revolution is coming, the only remaining question is when. For some time it has been clear to me that having vast lumps of metal sitting inactive outside our homes and workplaces is not an exactly brilliant use of the resources and investment they represent.

Every other transport industry, be it land, sea or air based, operates on the basis of a 24/7 basis and for fairly obvious reasons.

Why not the cars we drive? Last night Mercedes-Benz boss Dieter Zetsche gave his vision of the future of the automobile, and it involved us using cars on a just in time basis. So once our car has dropped us at the office, it beetles off under autonomous control to spend the day not sat in a car park, but working for someone else before returning to collect us at the end of the day.