A one-off, $12.5m homage to some other Bugatti from the old, old days.
It's based on the Chiron, which is handy, because if the most expensive car in the world wasn't also technically the best then that sort of wouldn't be cool really.
Lastly, it's black. But like, really black. Blackest thing I've ever seen I reckon. I like this.
And here it is darkly going about its business at the Geneva Motorshow...