Refreshed BMW 6 Series sports an understated redesign in Detroit [w/video]
It might be hard to spot BMW's changes for the 2015 6 Series family at the 2015 Detroit Auto Show, but they are there. The biggest of the understated tweaks all come at the front end, but there is some new tech for buyers, as well, like full-LED headlights. The interior upgrades are equally subtle.