With the turbocharged 456hp 4.4L V8 engine, 8-speed shiftable automatic transmission, and all-wheel drive, the 2001 BMW X5 has been averaging 20.63 MPG (miles per gallon).
The 2001 BMW X5s in this analysis were driven mostly on the highway at an average speed of 67 miles per hour (about 71.7 percent of the miles driven). The rest of the miles were in the city (25 percent), in heavy traffic (1.7 percent), and in the suburbs (0 percent).
In addition, the average 2001 BMW X5 in this analysis was driven on flat terrain with a light foot and the AC on only some of the time.