It's a fair point especially If you don't have the LED lights. Even with the LED lights your probably only saving 40w compared to halogen. I have no idea how much if any they have saved on the electronics front but I would seriously doubt they have save another 100 odd watts to make the systems equal. To make a proper comparison BMW would need to publish power consumption figures and I can't recall seeing this although I have seen it for the hexheads. Maybe someone can put a meter on theirs and let us know?