most of the Miata owners i know are asshats, they dont drive like it, but they are
i know the Powerstrokes are crap, the 7.3s were a little better, but everything Ford seems to make now a days has tons of recalls on crucial parts. and the thing with the eletrical circuts randomly catching fire even if the vehicles isnt running
Ford seems to be more concerned about turning out more cars and profit rather than any type of quality which is why they are so deep in the whole right now
if you want a diesel, the only real option is the Duramax, most powerfull and reliable, just crank up the boost if you want more, i know people running 50psi with a boost controler and larger intercooler and ECU tune