The 2019 Rolls-Royce Cullinan is available as a 4-door, 5-seat sport utility. Starting at $325,000, the 2019 Rolls-Royce Cullinan Base is powered by a 6.8L , 12 - cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 20-mpg on the highway.