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

What are the best 4-wheel-drive cars and SUVs of 2026? Use our expert BuzzScore rating to find the best 4x4 cars on the market.

The main advantage of having a four-wheel drive system is that it provides improved traction under difficult conditions. On a conventional 4WD estate, if the rear differential fails, can the car be ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Changing the car differential oil—it's one of the most-overlooked maintenance tasks ...

Most drivers pick the wrong system for their actual driving life.