( http://www.TFLcar.com ) The 2013 Quattro Audi S5 and Audi A5 have been refreshed and revitalized with new and more modern sheet metal, revised headlamps and minor tweaks to the car's interior. Of course in our opinion the Audi A5 and S5 are two of the most striking sports coupes that you purchase today. And if you are going to go big why not go really big and purchase the supercharged Audi S5? In this speedy Tech Demo and 0-60 MPH 1 mile above sea level Performance Test we check out what makes the 2013 Audi S5 such a fun and fast car to drive.