I wonder if this model will actually be marketed? Not much fuel advantage over many of the current gas engines.

Except in the past many diesels in normal hands exceeded their epa ratings. Gas cars generally never do. There has to be a worth while milage spread to justify buying diesel.

I would also want to see some owners do over 100k and the maintanance costs if any on that engine before considering one if I did. I thought it might be an existing engine used in europe but think the claimed milage is too low for that.