"The Bentley customer on average owns 8 cars. The average Bugatti customer has about 84 cars, 3 jets and 1 yacht." That may be a slight exaggeration (we'd have expected three yachts and one jet ...
The jacuzzi and the fire pit pretty much take up all of the available space on the deck, which is probably why the yacht nominally carries a maximum of three ... Bugatti puts it, is a two-seater ...
We don't have any info on the other two concepts at this time, except that one of the three will indeed be Bugatti's next model. We'll go ahead and guess that one of the remaining two is Veyron 2. ...