Although technical details didn’t accompany the patent images, we’re speculating the one-off is based on the Wraith, which is the only coupe in the Rolls-Royce range. Shortening the Phantom‘s platform is certainly feasible, but it sounds like a tremendous amount of work, even for what was certainly a money-no-object build. Venturing further into speculation territory leads us to a 6.6-liter V12 engine, which effortlessly develops 624 horsepower and 605 pound-feet of torque when it’s bolted in the Wraith’s engine bay. It likely powers this car, too, but its power levels might have increased. It probably spins the rear wheels via an eight-speed automatic transmission.

Rolls-Royce is keeping its lips sealed about this project. We expect to learn more about it in the coming months, but some details (like the identity of the collector who commissioned it) might not be revealed until several years after the coupe’s global introduction. As for pricing, keep in mind the aforementioned Sweptail allegedly cost $13 million. It’s not the most expensive new car ever sold; that honor goes to the Bugatti La Voiture Noire. It cost about $12.5 million before taxes, and over $18 million after, claiming it the title.

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