I think they call it a crossover, which is kind of a car / SUV hybrid.
Model X is 198″ L x 82″ W x 66″ H. A BMW x5 looks more like an SUV and is 192″ L x 76″ W x 69″ H so the BMW x5 is -6"L, -10"W, +3"H. (Or consider the 2009 Mercedes-Benz G-Class which very much looks like an SUV, but is again only 184″ L x 71-72″ W x 76″ H. https://www.cars.com/research/mercedes_benz-g_class-2009/)
For comparison a BMW 3 series is 182"L x 71.3"W x 56.3"H So it's -16 inches L, -10 inches W, -10 inches height.