I’ve driven several new Mustang GT’s and would compare them to a domestic Honda S-2000 as far as the powerband goes. Very little low end or mid range power. Just my thoughts. Camaro SS on the other hand, torque on tap at low RPM.
Drive the manual. If you still think that, you're not driving it right.
I went from C7 GS Corvettes to a Mustang GT and then a GT350. The GT was better off the line than both of them. BTW, I had 3 corvettes and I like the Shelby better.