The integral Hill Descent Control feature enables the BMW X2 to automatically maintain a desired speed on steep descents by taking care of brake control for the driver, who can then devote their attention to the task of steering. (press.bmwgroup.com)
*** Throughout this day of the tour you can expect to walk about 2.5 miles in total, including one fairly steep descent down stairways. (explorecaliforniatravel.com)
Overall gear reduction (at 36.7:1 in low - range first) is nothing to write home about, and with an auto transmission that automatically upshifts even when in manual mode, you can't rely on engine braking for steep descents. (motoring.com.au)