Imagine that it's 1955 and you're looking for a new saloon car for between £1000 and £1500.
You're probably about to trade in a facelifted pre-war design, something such as a Daimler Conquest or an Armstrong Siddeley Sapphire. Most likely, it had a separate chassis, rear drive, a huge 1930s-style radiator grille - complete with bonnet mascot - and either a vague suggestion of separate wings or half-hearted American-style tail-fins.
You could go for something sporty: maybe an Alfa Romeo Giulietta or a Jaguar Mk1. You could try to impress the neighbours with a Mercedes-Benz 180 Ponton or a Lancia Aurelia.
Or you could recall a favourable comment a friend once made about Citroën's Traction Avant.
You find yourself, perhaps an hour later, in a dealership, staring gobsmacked at a machine that you’re not even sure is a car, but a form of transportation from the future that may well fly, float and take you into space as well.
You're admiring a Citroën DS: artform, technical tour de force, cultural icon, philosopher's muse, and yours for £1400 at the time.