I am currently working on specifying a new 55' Sportfisher, the two engine options I am considering are the C18 and the D116. I have previously had CAT's, without any issues, however Scania's offering is attractive. They are cheaper, servicing is cheaper, fuel economy is 12% better at cruise. I am in Australia and Scania have increased their presence here over the last few years in recreational marine engines, but still not a lot of history. I would appreciate any comments or thoughts.