A full-beam master in a 53-footer (16.15 m) isn’t unheard of in the age of pod drives, which place engines farther aft than straight shafts, but the new M50 isn’t a pod boat. Maritimo has designed what amounts to a motoryacht on an essentially convertible hull in order to deliver the best of both worlds -- the room and entertaining space of a motoryacht, with the sea-kindly, rough water abilities of a convertible. This boat was formerly called the M50.