I don't mean competitors or price range or performance or luxury level -- is there a vehicle of similar size and shape? I have seen (sorry, no reference) that the Model X will be 4-5 inches longer than the Model S, which would put it in the 200 inch length range. I see a number of vehicles in that range like the Ford Flex, Buick Enclave and Mazda CX9, but those are more squared rear shapes like a standared SUV. I saw a BMW X6 up close for the first time the other day, and that, to me, was more like the shape I expect for the MX. But the X6 is a full 8 inches shorter than the 200 inch expectation. Comparisons to the Porsche Cayenne, to me, are more of a price/performance/market comparison than a physical one -- it is both 9 inches shorter AND squared off. Is there a current slopey-back, 200 inch long crossover vehicle?