The BMW Marine Diesel Range: A new class of engines with new, convincing merits The BMW D 35/D 50 marine diesels offer the merits of BMWs progressive engine technology for sailing yachts, displacement boats, and cabin cruisers. After careful preparation and thorough testing, BMW has now rounded off the range of BMW marine engines. And all of BMW's marine diesels offer advantages worth noting when you choose your marine engine. The merits of the BMW D 35 and D 50 are the result of a consistent marinization process and BMW's extensive Experience in the design and development of diesel engines. And you could take advantage of this experience for your own benefit: Compared with all of their competitors, these BMW marine diesels offer an absolutely excellent power-to-weight ratio. So a simple comparison shows how much more BMW can offer you in this respect. And since these engines also have very compact dimensions thanks to their modern design, they also offer a superior power-to-size ratio. Over and above their extremely compact dimensions and low weight, the BMW D 35 and D 50 marine diesels have many other outstanding features to offer.