Being a concept, it’s only just fast enough to get out of its own way at the moment. But that’s still enough to animate this huge cartoon of a car and turn this dream into a near reality. All that’s missing are three friends and a far-off destination. There is a claret-coloured canvas roof, which was hidden away during our drive, but that will be shown, along with a few other detail updates, in its full glory at the LA Show in November.

The impressive thing is how much like a Caddy it feels inside and out. Loads of concepts look like an artist’s fantasy with a brand’s badging stuck on. Peel the badge off, and many could be anything. Not the Ciel. The bluff front might be softened slightly, but the vertical lights and flat planes are still evident enough to leave you under no illusion that this is – or could be – one of GM’s finest.