At one time, if you wanted a vehicle with four driven wheels, you were limited to just a handful of large trucks and full-size SUVs, most of which were used for work chores or off-road adventure. But times have changed. Now, many vehicles sold in the U.S. are available with either all-wheel drive (AWD) or four-wheel drive (4WD), making them more capable and more desirable to a wider audience.
