Episode 56: 2018 BMW M550i xDrive, 2018 BMW M760Li, M-A-R-K-E-T-I-N-G

When is an M car not an M car? When it's an...M car? If that's confusing to you, too, then join us for an exploration of two extremely fast, very large BMWs that wear the M badge more modestly than some of their stable mates - even thought one of the features a twin-turbo V12 under the hood and is the most expensive model you can buy from the German brand. We're talking M550i and the M760Li on this week's episode, and wondering what the end game is for BMW's M division: Motorsports or Marketing?