The 2022 Volvo S90 is available as a 4-door, 5-seat sedan. Starting at $52,850, the 2022 Volvo S90 Momentum is powered by a 2.0LL , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 23-mpg in the city and 31-mpg on the highway. The top of the line 2022VolvoS90Inscription , priced at $ 55,950 , is powered by a 2.0LL , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 23-mpg in the city and 31-mpg on the highway.