Some reasons for increased weight that have not been specifically discussed in this thread are the very new "small offset" (25% coverage) crash test requirement and the increased roof crush test requirement. Apparently the small offset test is particularly challenging to meet without increasing...
Was viewing a recent post in this forum section titled: "200 lbs within reach..." that was initiated on 12-08-2013 -they had attached a video clip from Autoline Daily, March 2013. One of guests was Dave P. the 2015 Mustang chief engineer; he mentioned that the Mustang is 5 star rated for...