The 2020 BMW X7 is available as a 4-door, 7-seat sport utility. Starting at $73,900, the 2020 BMW X7 xDrive40i is powered by a 3.0LL , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 25-mpg on the highway. The top of the line 2020BMWX7M50i , priced at $ 99,600 , is powered by a 4.4LL , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 21-mpg on the highway.