Guys if you have never been to NYC, or anywhere around here, you really don't understand the conditions of the roads we drive on.

At least once a year I replace;
1. At least one tire. At least. Due to blow out, bubble, tear, etc...
2. Bent rim.
3. Occasionally I hit such a huge hole that I split a rim.

I had poly bushings on my Lexus, it took it fine except they started to squeal like a pig about a year into it. Constant re-greasing. Nothing ever fell off of it due to the bushings, but you never know with these BMWs.