Not sure how many 5ers are on the market nowadays that have a flat roof from front to back. However, as I'm writting this, there are some and I think those w/ either a front living room w/ elevated rear BR or vice-versa will have flat roofs. Want to say too that I've seen some w/ front BR and flat roofs all the way w/ rear LR. Makes for a tall inside room where a lil step ladder is needed to get to cabinets.. Friends of ours have a early 2000 something FR 5er (discontinued line) that has the flat roof/front BR layout and man it's tall inside. Not positive, but what about the Vanleigh line of 5ers?