Beautiful colour on beautiful car. I had my touring in topaz blue and I fell in love with it. Now I have midnight blue which is pretty too but nothing can beat topaz. You are very lucky to have it for the second time. I am not fan of grey interiors. Beige, black and silver in your 320i is very nice. If I were you I would switch it from 320i but keep the anthracite headliner. Are you sure with that O2 Pilot mod?