1964 public information film about bad British drivers

Enjoy this 1964 public information movie depicting a gentlemanly British family man turning into a contemptible twit when he gets behind the wheel of a car: "He's not an especially nasty man. He's considerate, normally. But now he's … downright daft and selfish." At this point he no longer deserves his wifely kiss. Stay to the end for a moment of sublime oddness when the narrator's chirpy Queen's English transforms into an electrifyingly bad impression of working class road rage.