This video is from 2011 with the new Bmw X3 model and Audi Q5. With the new X3 model, the bavarian company wanted to prove their xDrive perfomance. So they made this interesting test, to see if their all-wheel-dive it`s better than Audi Q5. By using a ramp that allows both vehicles to lose initial adhesion on the front axle and then on the back axle, they proved their great performance. Even if many still belive quatro system is better, this video shows that Audi Q5 had some real problems on the ramp, while Bmw X3 passed the test perfectly. This proves that Bmw improves their performance with every model, by investing more that any other brands in their technology.