All-Wheel drive is a four-wheel drive system that has no two-speed transfer gearbox. It operates similarly to full-time or permanent four-wheel drive, but does not offer Low Range capability for off-road use. This system was originally available in passenger cars, such as those from Audi and Subaru. Now, however, All-Wheel drive is being used in a growing number of sport-utility vehicles, such as BMW X5, Oldsmobile Bravada, and Ford Explorer.