Slightly off topic, but regarding the BMW: funny how blue seems to have become the colour of environmental cars? The first one I can remember to do this was VW with their blue line (these weren’t electric, but were models with lower consumption). Both Toyota (hybrids) and Nissan (electric) have adopted this colour for details (logos, badges etc) and now also BMW with their i-cars. Any others? Or any other product categories that use this convention? In general green is used to indicate “environmental frienly”.