The 2013 Rolls-Royce Phantom is available as a 4-door, 5-seat sedan. Starting at $398,970, the 2013 Rolls-Royce Phantom Sedan is powered by a 6.8L , 12 -cylinder engine mated to an automatic transmission that returns an EPA estimated 11-mpg in the city and 19-mpg on the highway. The top of the line 2013Rolls-RoycePhantomEWB Sedan , priced at $ 470,295 , is powered by a 6.8L , 12 - cylinder engine mated to an automatic transmission that returns an EPA estimated 11-mpg in the city and 19-mpg on the highway.