A drivetrain that delivers power to all four wheels enhances traction on low-friction surfaces such as ice. This system distributes torque to each wheel, maximizing grip and improving vehicle control compared to two-wheel drive systems, which power only two wheels. For example, a vehicle navigating an icy incline benefits significantly from the added traction provided by powered rear wheels alongside the front.
Enhanced traction on icy roads significantly improves vehicle stability and control, reducing the risk of skidding and loss of control. This capability is particularly crucial in regions with frequent ice or snow, enabling safer travel and potentially preventing accidents. The development and refinement of such systems have contributed to improved safety standards in automotive engineering, especially for winter driving conditions.