Sounds like mine - just swivels slightly. The passenger side folds right to the window though.I've never even looked at the other side to be honest, will have to do that in a bit. All I noticed is the drivers side making a cursory attempt to fold in and thinking to myself, whats the point in that exactly?
I did get my Mustang in the garage and it was very tight between the door posts so I did have to fold in the mirrors. Once in the garage there was enough space and I could open the door and get out of the car.It's hard to see because he doesn't show a shot straight down the side of the car, but going on the measurements it reduces the width by the best part of about 4"; that could be the difference between it living in the garage or spending it's life out in the open.