At one point BMW were very into their fibre networks in-car, but I think they moved away from that for reliability. EDIT: here it is. https://en.m.wikipedia.org

At one point BMW were very into their fibre networks in-car, but I think they moved away from that for reliability. EDIT: here it is. https://en.m.wikipedia.org/wiki/MOST_Bus https://en.m.wikipedia.org/wiki/MOST_Bus