Today we present the newest member of BMW’s X-family. From the front it strongly echoes the X3 and, guess what, the technology is based on the X3 as well. But from the back it’s a coupé, like the BMW X-6. In price and features, though, it’s more like an X-5. So the BMW X4 isn’t really an S-U-V, but an S-A-C, or sports activity coupé. Let’s see what it can do.