Conflating the dual clutch automated transmissions in those with the automatic in a Mustang is a poor way to form an argument.Right. Tell that to Porsche, Audi, McLaren among others.
http://www.caranddriver.com/compari...ng-performance-data-and-complete-specs-page-5
However, even if I were to take your erroneous argument at face value, track times are silly. It's about driver engagement. Maybe .5% or less of people who buy Mustangs are tracking them on a regular basis. In terms of feel and driver input, even fancy transmissions can't match the beauty of the manual. See: journalist obsession, hyperbole, and praise of the 911R.