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, but fairly rare in the car world.

Generally speaking, 4WD is selectable, and AWD is always active. The video brakes down the unique differences, how they’re similar, as well as the advantages of each setup. What do you prefer? AWD or 4WD? Watch the video by Engineering Explained for more info:

Four-wheel vehicles tend to feature a two speed transfer case with both high and low ranges. Most 4WD vehicles tend to operate in RWD mode until four-wheel traction is required.

But unlike AWD, most systems are driver activated, meaning the driver must engage the AWD function via a secondary gear shift or through a button or setting.AWD is the newer technology, and while it also splits the power from the engine between the two axles.

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