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What does 4WD mean in cars?

1 Answers

GeorgeFitz

07/30/25 1:17am

4WD in cars stands for four-wheel drive. Here is a partial introduction about 4WD: 1. Applicable vehicle types: In the early years, four-wheel drive was mainly used for hardcore off-road vehicles, but now it is also used in urban SUVs. Many mid-to-high-end sedans and luxury sports cars also adopt four-wheel drive. 2. Three forms: They are full-time four-wheel drive, part-time four-wheel drive, and on-demand four-wheel drive. (1) Full-time four-wheel drive: Cars equipped with full-time four-wheel drive systems are always in four-wheel drive mode. This type of four-wheel drive system is commonly found in some luxury SUV models, such as the BMW X5 and Audi Q7. (2) Part-time four-wheel drive: This four-wheel drive system can switch between four-wheel drive and two-wheel drive via a switch inside the car. Most off-road vehicles with part-time four-wheel drive have a low-range four-wheel drive function. When switched to low-range four-wheel drive, the wheel torque is further amplified, allowing the car to escape difficult situations smoothly. Cars equipped with part-time four-wheel drive include the Toyota Prado and Jeep Wrangler. (3) On-demand four-wheel drive: This four-wheel drive system is generally used in some urban SUV models or some front-wheel-drive cars with transverse engines. Cars equipped with on-demand four-wheel drive systems usually drive in front-wheel drive mode, and power is distributed to the rear wheels only when the front wheels slip or full acceleration is needed.

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