The other night i was out driving at a 135mph with the top down. I did not have the cover snapped in place over the rag top it was in the truck of the car. The wind pressure at 135mph with the top down was strong enough to dislodge the back seat back rest. The pressure actually lifted the rear seat back rest clips up and out of their hold down points making the back rest float around in the rear seat area. Quite a scarry feeling at 135mph seeing my back seat floating in the rear view mirror.
So from now on when i put the top down I snap the cover on.
Never know when the earge to go fast will hit you, but when it does that back seat back rest will stay where it belongs.
I also fastened the seat belts back their just to be double safe.

 

just outside of Houston, TX.