The 2015 Rolls-Royce Ghost is available as a 4-door, 5-seat sedan. Starting at $286,750, the 2015 Rolls-Royce Ghost Sedan is powered by a 6.6L , 12 -cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 21-mpg on the highway. The top of the line 2015Rolls-RoyceGhostEWB Sedan , priced at $ 319,400 , is powered by a 6.6L , 12 - cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 21-mpg on the highway.