In 2013
Don't get me wrong, I don't want there to be a diesel Mustang, I think its a stupid idea. If you want a diesel Ford you buy a Mondeo, not a muscle car.
End of the day if they do it, then so be it, all I know is when one pulls alongside my true pony muscle car they will cower in shame.
Said it before, many ecoboost owners must cringe inside when a passer-by ask them to give it a rev as they sound well carp compared to a V8, now imagine how a diesel cough tractor would sound, lol.
I think they will bring hybrid before diesel to be honest.