iS Owners- Brunehilde (535i) is going to get a paint job soon and I'm considering getting a 535is chin spoiler for the front end, but I have some questions. 1. Is the spoiler urethane or fiberglass? 2. Does it tend to seek out parking curbs and other obstructions on it's own? I had a car with a front air dam that was pretty battered from parking curbs, but I was also younger and dumber at the time. 3. Does it act as a snowplow in winter weather...i.e. will it get stuck where otherwise it might have made it through the 6-8 inches of snow? 4. How does it mount? Does the old valence remain or does it come off? 5. Can anyone use the magic of photoshop to make a Arctic Blue 535iS 3/4 frontal shot? I can't quite visualize it in my mind's eye.