What Are the Differences between Audi's Quattro and Lamborghini's 4WD Systems?

I know Audi and Lamborghini are owned by the same company, but what are the specific differences between their four-wheel drive systems? Are there any unique features or engineering differences?

Audi's Quattro system is a permanent all-wheel drive system that uses a central differential to distribute power between the front and rear axles. Lamborghini's 4WD system is a rear-biased system that primarily sends power to the rear wheels, and can send up to 100% to the front wheels if needed.

One unique feature of Audi's Quattro system is the addition of a torque vectoring rear differential, which can actively distribute power between the two rear wheels for improved handling and traction. Lamborghini's 4WD system does not have this feature.