What price top-shelf automotive indulgence? If the new Rolls-Royce Phantom Coupe is any guide, bank on a cool $400,000. This is the breathtaking price tag being attached to this plush two-door in the run up to its world premiere at the Geneva auto show early next month. To put it in perspective, that's more than double what Mercedes-Benz asks for its top-of-the-line coupe, the $197,500 CL65 AMG. Yikes!