The core of 4-MOTION is the application of HALDX clutch plates, but Tolson differential is also used in some models. But because Audi is a subsidiary of Volkswagen, some technologies are used in the same way. For example, although TT is nominally a four-wheel drive with QUATTRO technology, it actually uses 4-MOTION technology, which is related to the horizontal and vertical positioning of the engine.
It is undeniable that Audi's quattro technology is excellent in pure off-road, but 4-motion is more suitable for civilian use.