They only plan to build 25 Celestiques this year, which poses one obvious question. The second for me is who buys these things? Obviously someone pretty wealthy, but beyond that. I think any car over say $150 K is a status statement. It hardly matters whether some other make it "better". The status of a Cadillac is simply not the same as that of a Rolls, or even high end Mercedes, in my view. The status of a Corvette is not that of a Porsche, even if the former is faster on a track.
In terms of being "unique", the Caddy will stand out, for a while anyway. Maybe someone in LA is tired of pulling up to the Club in his Rolls when there is one in front and three just behind, so he wants one of these.