For a long time, the prestigious house kept the mystery about the efficiency of its engines, saying in a terse way that the power was sufficient. Besides, the owner of a Rolls doesn't care about this hustle and bustle under the hood. Above all, he intends not to hear anything! The mechanics of a Rolls must work silently and be forgotten. Seen from this perspective, electric propulsion is a boon to move this huge coupe weighing nearly 2.9 tons without noise or effort. As for the range of 500 km? It may be higher than that of gas-powered Rolls...