Leave it to BMW with all their many series of vehicles to create one that doesn’t fit anywhere. We have SUVs, but the X4 is not that, we have CUVs and it certainly isn’t that either. We even have SAVs with takes the utility out of the equation, but BMW is adamant the X4 is something else entirely. At BMW the X4 is called a Sport Activity Couple or SAC and it makes perfect sense. While the size of this vehicle is only slightly larger than a hatchback the style does invoke the feeling that it may just be a coupe that’s on a platform.