Wow - the engine weighs 33 lbs more than the 1.4. Nice!
I think all the effort into making a diesel NOT sound like a Diesel, the ridiculous fuel economy, and torque figures will make a good case for selling them. My coworker owns a BMW 335d after driving one in Europe, and those are all the reasons he wanted the diesel in the first place, and despite those current Diesel owners that like the little tractor motor sounds, I think making diesel "ordinary" will sell them more here in this country.
I also thing putting them in little crossovers is a very cool idea.