What is the difference between quattro and XDrive in Audi and BMW vehicles?

I am considering purchasing an Audi or a BMW but I'm confused about the different all-wheel drive systems they offer. Can someone explain the difference between quattro in Audi vehicles and XDrive in BMW vehicles?

Quattro is Audi's signature all-wheel drive system and it uses a center differential to distribute power between the front and rear wheels, providing exceptional traction and handling. XDrive, on the other hand, is BMW's all-wheel drive system which uses a central transfer case to distribute power between the front and rear axles, allowing for improved grip and stability in all weather conditions.

In terms of performance, quattro provides a more rear-biased distribution of power, making it better suited for dynamic driving and cornering. XDrive, on the other hand, tends to favor the front wheels, making it better for maintaining traction in slippery conditions. So, it ultimately depends on your driving style and the weather conditions you typically experience.

As for maintenance, quattro requires less maintenance and has a longer lifespan due to its mechanical design and use of a central differential. XDrive, on the other hand, has a more complex electronic system and may require more frequent maintenance. So, consider your long-term maintenance costs when making your decision.