AWD vs 4WD - What's the Difference?

AWD vs. 4WD System- What's the Difference

Most car, truck, and SUV buyers fail to differentiate between AWD and 4WD cars. The main advantage of these two systems is that they transmit power to the wheels that require the most traction. If you have issues differentiating the two, this blog will help.

What is an All-Wheel Drive system?

An all-wheel drive system functions without the help of the driver. These systems come with a sensor that detects which wheel requires more power at a given time. Therefore, the wheels acquire different amounts of energy through a clutch pack and differential system that allocate power to maximize traction in ice, snow, mud, and rain.

When driving on dry pavements, an all-wheel drive system can augment steering precision, especially in corners. Because of this, most high-performing cars feature an AWD system and vectoring capabilities to enhance cornering ability at higher speeds.

There are two types of all-wheel drive systems: part-time and full-time. Part AWD always remains in rear-wheel drive or front-wheel drive mode until the car requires more traction. When the vehicle requires more traction, the system directs power to the wheel and axle that requires traction. On the other hand, Full-time AWD sends power to all four wheels regardless of the power needed.

What is Four-Wheel-Drive System?

Like the former system, 4WD works by sending power to all wheels to optimize traction. However, unlike an all-wheel drive system that activates automatically, in a 4WD system, the driver must activate the system by pulling a lever or pushing a button. One beauty of this system over AWD is that it can handle more hauling and towing loads and rugged terrain. For this reason, you will find this system in pickup trucks and SUVs meant for heavy-duty work.

The four-wheel drive system uses a two-speed transfer case and rear, center, and front differential to transmit power to all wheels. This enables the driver to direct additional power to the front wheels or maintain the power flowing to the rear wheel. Like the AWD system, 4WD systems come in two set-ups: full-time and part-time. The full-time system continuously sends power to all wheels while part-time uses two-drive mode unless the driver engages the 4WD mode.

If you are stuck between shopping for an SUV, car, or truck with AWD or 4WD system, we are here to help. Contact our sales team at Van Buick GMC dealership, and they will help you find a model that suits your needs.