GM has always been a little lacking in that area, even on the full 4 doors. I've got size 9-10's...I have to turn them sideways to get out of a Chevy...my kid has sz 12-13's, he doesn't have to do that in a Ford. Sure, there's enough in a GM...but there's just more in a Ford. Get a Chevy owner in the back of a Ford and they ask where's the disco ball? Got a dance floor back there, it's flat, and spacious.