The 2016 BMW M6 uses LED bulbs for both the low-beam and high-beam headlights. The supplied fitment data does not identify a replaceable halogen bulb size or indicate a projector versus non-projector headlight variation, so confirm the complete LED headlamp assembly before ordering replacement parts.
Other exterior lighting is also listed as LED, including the fog lights, front and rear turn signals, brake lights, center stop light, cornering lights, daytime running lights, parking lights, license plate lights, side markers, and tail lights. The reverse light uses a 921 bulb.
Interior fitment includes multiple listed options by location: the interior and vanity lights use 2825 or 98 bulbs, the map light uses 2886X, and the trunk light uses 6411 or 6428. Check the existing bulb and socket configuration when servicing these interior locations, since more than one size is listed.