Road Tests Index

Road Tests Index

Thursday, 12 May 2016

4WD vs. AWD: The Difference, Explained

 
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4WD vs. AWD: There's a Difference.
Here It Is, Explained.
 
Which is it: four-wheel drive or all-wheel drive? The answer is more complicated than you might expect. Is the system part-time, full-time, or on-demand? Reactive or predictive? Does it use a hydraulic clutch, an electromagnetic one, or something else entirely? Is it engaged using levers, twisting a dial, pushing a button, or does it simply magically show up when needed?

In the late '80s, four-wheel-drive vehicles were simpler machines, often owned by hunters, farmers, and ranchers who didn't mind putting a knee in the dirt to twist their truck's hubs to lock the front axle, but the increased popularity of SUVs and crossovers has led to the democratization of all-wheel drive, giving laypeople the ability to tackle tough terrain as well as the IKEA parking lot.

Funny, considering the purpose-built roots of these drivetrains.
 
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