The 2017 BMW X5 is available as a 4-door, 5-seat sport utility. Starting at $58,900, the 2017 BMW X5 xDrive35i AWD is powered by a 3.0L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 24-mpg on the highway. The top of the line 2017BMWX54x2 , priced at $ 56,600 , is powered by a 3.0L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.