Not the United States (you knew it wouldn't be that easy), and not Rolls-Royce's native England. In fact, it's not a Western country at all. It's China.
An anonymous Beijing property developer has purchased a $2.2 million "super-limo" that includes an LCD media system and other state-of-the-art technologies, according to the BBC, as well as two rows of rear seats that face each other. (We're not sure why either, but that's what they said.)
The record was reported along with a contract to sell 14 Rolls-Royce Phantoms to Hong Kong's Peninsula Hotel. Those include "a cool box for chilled hand towels." Again, we don't know why. It must be a rich thing.