2015 BMW 4 Series Gran Coupe: Move Over 3 Series Published on October 31, 2014 in First Drives by Benjamin Hunting Photo: BMW Cutting and pasting bits and pieces of the 3 Series sedan, the 4 Series coupe, and at least spiritually, the 6 Series Gran Coupe, this latest sloped-back member of the BMW family looked like it had the potential to be a train-wreck-by-committee.