I don't believe the fronts are different. However I did see what I thought was a 99 or 00 19' Bambi with a wider rear window than the model of the last 2 or 3 years. I took a look since I knew the shower was in the same area and I could not see in the far left of the bigger rear window. I figured it was a bigger window, but only 1/2 to 3/4 actually was window space you could see through because of the shower wall being in the way.....so then I figured the window was made smaller in back because there was little point to a larger back window when only part of it could be actually used?
Anyway, that's my story and I'm stickn' with it!