The 2015 Hyundai Equus is available as a 4-door, 5-seat sedan. Starting at $61,500, the 2015 Hyundai Equus Signature is powered by a 5.0L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 23-mpg on the highway. The top of the line 2015 Hyundai Equus Ultimate, priced at $68,750, is powered by a 5.0L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 23-mpg on the highway.