Yeah, I think the 2012ish model is when they screwed the new-older-new shape up.
They're now trying to make a sports car they can sell all over the world as with this model they've made it RHD so they can offer it to more markets, such as Oz.
Also the reduced engine sizes should make it more appealing, on paper. But in reality if you want a Mustang, you're gonna want it with a V8 right?!
(No offence
)