I love my Audi A8, it's 12 years old and still performs as I would expect another newer car in the middle of the road bracket, the secret I believe is to find a good garage not main dealer, build a good relationship with him, and he will look after you, I went to Scotland for nine days 70-80 mph on motorways and cruise anywhere else the returns was 31.8 mpg overall marvellous. shop around for parts, it's surprising, how cheap you can things for. To use the old Jaguar adage, Space,Grace and Pace.
Happy Audi driving
ps and other cars stop to let you pull out
regards Andy