What is the difference between Audi's permanent all-wheel drive and regular four-wheel drive?

[LaSawyer]

Here are the specific differences between Audi's permanent all-wheel drive and regular four-wheel drive: 1. Operation: The permanent all-wheel drive system uses a central differential between the front and rear axles to absorb the speed difference between the front and rear wheels, balancing power distribution between the axles, ensuring the vehicle is always in four-wheel drive mode. Regular four-wheel drive systems require manual switching by the driver, using a transfer case to rigidly connect or disconnect the front and rear axles to engage four-wheel drive. 2. Performance: The permanent all-wheel drive system offers a superior driving experience, stable cornering, and strong off-road capabilities. Regular four-wheel drive systems provide a poorer driving experience, unstable cornering, and weaker off-road performance. 3. Manufacturing cost: The permanent all-wheel drive system has a complex structure, resulting in higher manufacturing costs. Regular four-wheel drive systems have a simpler structure, leading to lower manufacturing costs.