My '09 328 vert is due for delivery the 3rd week of March. I am trying to figure out a way to carry a bicycle without using a rack of some sort. There are bike cases used for airline travel that may fit in the backseat. Can anyone tell me the width of the back seat area along the bulkhead dividing the area from the trunk? My hope is that I can fit one or two cases accross the back seat area with the seat folded down. The cases seem to be about 46 inches wide. Thanks for the help.