Considering buying used

I'm considering buying a used A5 coupe from 2012 or 2013 and I know next to nothing about car buying, but I'm slowly gathering information. I really love the design of the Audi and it's the car I really want to buy, but I want to make sure I have all the facts before I purchase one. Can anyone share experiences or advice with purchasing a used A5 and possible issues I might run into (oil usage, common repairs, cost of repairs...etc)? This will be an everyday car I take to work (roughly 40 mile drive to and from) as well as for weekend use. This will also be my first car (recently graduated and got a full time job).



Thanks