This one's simple: take one Audi RS3, and one BMW M2, and launch them both together at the same time to see which one is quicker. Subscribe now: http://smarturl.it/autocar Will it be the Audi RS3 saloon, all 395bhp and with 4wd to propel it? Or will it be the BMW M2? On the face of it, it has lesser advantages, being only 2wd and having just 370bhp. But it is lighter. And to compensate for the Audi's natural traction advantage, we'll try it both with launch control, and from a stand