This was a nice comparo, and surprisingly thorough. I like most of their work.
I really want to like the EcoBoost Mustang, but will reserve final judgment until we see the "free tuning upgrade" (later this year?) and other market development. I'm certain this car will be a beast, and there probably are nice high-powered examples prowling around! This is a fine street car. Maybe I still prefer the V8 though? The V8 sounds much better...
The thing I can't over is the weight. Really, ONE THOUSAND pounds heavier than a FiST?! :/