I saw a 98 740 iL with 113k miles for about 11 grand close by me and thought it would be an awesome step up without bleeding my pockets dry. First thing I would want is to put in a navigation system. The main thing I'm worried about it what I should look for and what breaks at what miles. I currently have a 325i and I can tell you everything that goes wrong with them but now I'm stepping into a new realm. Anyone with a 7 that can assist, it would be dearly appreciated.