The time period describes a car drivetrain configuration the place the engine’s energy is delivered to all 4 wheels. This technique contrasts with two-wheel drive autos, which solely ship energy to both the entrance two or rear two wheels. A typical instance is a pickup geared up with this technique, permitting it to traverse difficult terrain extra successfully.
The importance of this drivetrain lies in its enhanced traction and management, notably advantageous in off-road circumstances, snow, mud, or different slippery surfaces. Traditionally, this functionality has been very important for varied functions, together with navy operations, building, and useful resource exploration. Its adoption has considerably improved car efficiency in demanding environments.