While both are useful when road conditions aren't the best, there are differences when it comes to AWD and 4WD. Here's what you need to know.

The difference between all-wheel drive (AWD) and four-wheel-drive (4WD) is a topic of confusion for many car, truck, and SUV buyers. Both systems send power to the wheels where traction is needed most ...

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! Nothing all that impressive for any truck drivers out there, ...