When John Lennon unveiled his Rolls-Royce Phantom V in a psychedelic yellow paint job in 1967, he was confronted by an elderly woman who screamed: “You swine! How dare you do that to a Rolls-Royce!”

No such abuse, however, was hurled at the creators of the first fully electrified Phantom V as it pulled out of a workshop in Silverstone, the home of British motor racing, for its debut drive this week.