Audi A4 review http://bit.ly/12TbEMI<br />Subscribe to our YouTube channel http://bit.ly/11Ad1j1<br />Subscribe to the mag http://subscribe.autoexpress.co.uk/yt<br /><br />In our series of Heroes Humbled? videos we set up a drag race between the legendary Audi Quattro and the latest Audi A4 2.0 TDI. Which car will win?
