I previously drove a BMW 3-Series and now I have a Mercedes C320 and now I can tell you I would NEVER buy another BMW! It wasn't a bad car but it's not a Benz. <br> <br> Regarding Springs and Wheels I say go for it (I did)! But if I was you I'd do 19-inch, they fit great and still rides great!<br> <br> Good luck.