I worked for audi for a couple years and let me tell you they are 100 times more difficult to work on and diag than bmws. I consider them the hardest cars to work on... When you get good there is quite a bit of money in those baby. Now I do race prep for mostly bmws. They are quite a pleasure to work on but I also do all the audi work in the shop, but it keeps you on your toes! good luck and congrats!