The naturalness of an unnatural product. The great chrome Jaguar over the entrance to Marshall's garage showroom opposite the airfield at Cambridge. The early motor car names were all about grace and speed: Swallow, Jaguar, Alvis Silver Eagle, Singer Gazelle, Humber Super Snipe (Reliant Robin or Reliant Scimitar, you take your choice).
I exclaimed "I know that Jaguar! I've got a photograph of the very one!" (It's amazing what'll get you going in the cold, dark, early hours.) So obviously feeling very smug and self satisfied I fell asleep immediately.