The 2018 Rolls-Royce Ghost is available as a 4-door, 5-seat sedan. Starting at $311,900, the 2018 Rolls-Royce Ghost Sedan is powered by a 6.6L , 12 -cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 18-mpg on the highway. The top of the line 2018Rolls-RoyceGhostEWB Sedan , priced at $ 345,900 , is powered by a 6.6L , 12 - cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 18-mpg on the highway.