I think with the diesel technology we have now, more people are open to the idea. Back in the 80's there were some diesel cars, but the exhaust smell put most people off. More manufacturers should capitalize on the small diesel car market. The DEF emission systems are better than a DPF only system, less problems as long as the DEF is of good quality.
ETA... the new 2019 Ford Ranger will have a diesel option.

