Agree the length and height are there, but its the width that is not there in the 'B's. If you add two feet to the width, you are going to wind up with the same external size as the small 'C's of today. Mine for instance, with the slides in is 24 feet long, and a bit shy of two feet wider than a van. I'm not sure adding only 10 inches would make that much difference, but maybe. Would be interesting to see what a good design engineer could come up with, given that space to work with, that would actually be a usable floor plan that would compare to the small 'C's.
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