Is Four-Wheel-Drive Better Than All-Wheel-Drive?
There is certainly some misunderstanding between four-wheel-drive and all-wheel-drive technologies. Don't they both mean essentially the same thing? Well, they sort of do in one sense because they both cause all four wheels of a vehicle to be fully engaged in powering the vehicle, giving more traction at the driving surface.
Four-wheel-drive is used most often in pickup-trucks and extra-sized off-road SUVs. A split differential and lower gear ratios accomplish the task of powering all four wheels.