Highlight of Goodwood's second Moving Motor Show, for me, was a chance to drive the electric Rolls-Royce Phantom I've heard so much about.

As you view and operate there's almost nothing ‘foreign’ to see unless you delve under the bonnet and discover banks of power electronics, or under the car itself and discover 600-odd kilos of lithium-ion batteries that power up a pair of electric motors over the back axle, each as powerful as a Tesla sports car.

Of course, the power train is silent. You'd expect as much. But what's really striking is how quiet the surrounding mechanical parts - wheel bearings, transmission, suspension and tyre noise - all are.

Progress is nearly silent, far more so than any petrol car of my experience. Thrust from the engine is powerful and linear, highly suitable for a mega-luxury car.

This suitability is certainly not lost on Rolls-Royce. The thoroughness in engineering this one-off, and their comprehensive travel plan for the car, to take it around the world, make it clear that - despite denials that any battery Roller is imminent - that they can perfectly see how well electric power can suit a car known for silence and ‘waftability’.