We describe how all-wheel drive (AWD) and four-wheel drive (4WD, a.k.a. 4x4) work: similarities, differences, and ways they ...

AWD and 4WD sound similar in name but they are very different AWD is always active on most vehicles while 4WD can be customized depending on the situation A lot of people use the terms four-wheel ...

What Are The Differences Between AWD & 4WD? Which Is Better? What's the difference between AWD and 4WD? I was handed the keys to the brand new BMW M5, which can actually switch between 4WD and 2WD!