Hi ecoman77,I test drove the diesel and didn't notice the engine noise. That might imply that it does sound like a diesel as all the cars I have had over the last 10/12 years have been diesels. I liked the drive but with PDF's on all new diesels I find that they are not really worth having, financially, unless you are going to do lots of motorway mileage which I don't do any more.I will say that having had the Ecoboost engine for 2 weeks now I am happy with my choice. Lazy.