Hmm, odd that in those pictures the BMW does seem to light up the road better but while driving I actually feel the Mercedes lights up the road MUCH better. I took some new pictures using a tripod and it looks like the Mercedes lights are angled higher, which is probably why I feel the road further ahead is lit up better (I've already adjusted the BMW lights higher than how the car came, maybe I should go higher still?)
BMW on right, Mercedes on left.