Hi all. New to this so any help welcome. Im in the market for an Audi A6. I have about 6k to spend and have a couple of questions for you experts. 1. Is there a shape difference to the s line or is it just spec? 2. Is the 2.7 diesel a better bet for such a large car from an economy point of view? 3. What would be the main watch outs when starting the hunt. Any my advice or help very much appreciated. Thank you.