This is Audi’s only entry on our list of the world’s most expensive car brands to insure, but what an impression the Rs7 Quattro Prestige makes! Starting from $111,650 (€105,677 /£89,620), this car screams ‘built for speed!’ with its sleekly styled body, 20-in wheels, and amazingly powerful twin-turbo 4-litre V-8 all-wheel-drive engine with 560hp.