Hi,
Love your X6 with 215's. I have a '11 X5M with 20"wheels similar to your wifes.
Gary at Ameritrade (great guy) told me you had some 214 20's. It's hard looking through pics vs. in person. Do you feel this was a huge upgrade and was it worth it? And does it drive differently? I'm thinking about buying the 215's for my M.
Thoughts? Thanks, Sean