Can someone explain why the Quattro transmission allows the brakes to be tested on a brake tester, when other 4WDs have to be tested with a declerometer, (Tapley meter)?
![2020 Audi Q8 50 TDI Quattro S Line 5dr Tiptronic [Leather]](http://images.honestjohn.co.uk/imagecache/url/crop/90x60/https/cdn.uk.prod.group-mobility-trader.com/images/cas/944737daf729f15b41bd5976b5766cde/1c8f3dd87cfc9bb5d894a1dd6b53aceb.jpg)
