The bow is in the center, I'm not sure exactly if it's fixed or floating. The edges where it curves down, there is a gap between the liner and the roof.
Also, as far as the seat, with the door shut, there's about a 3" space between the seat and the door. Is that considered the '50 wide?
Here's a photo for whatever it is worth:
http://i1023.photobucket.com/albums/af352/vincentmilone/IMG_0089.jpg .