This.
Im 5'5"and you can barely fit another smaller human in the back seat directly behind me. To get a normal sized human back there I have to move my seat all the way up.
Im a short **** and I have to get uncomfortably close to the steering wheel and pedals to fit a passenger behind me. The back seats in the Mustang are literally a courtesy and Mustang should be viewed as 2 seat sports car.
my two daugthers can barely fit back there, 8 year old and a 14 year old...my wife has been bugging me to finally get a grown up car, so I got her a suburban to replace her tahoe We never go out in the mustang anymore, don't like shoe horning my oldest into the backseat. I am LMFAO at all the four seat talk... the only thing going back there are groceries and Oompa Loompas...