Could a smaller Sport Activity Coupe (SAC) be coming from BMW? According to Autocar, the answer is "yes". Fans of the X6 should be pleased. Everyone else? Sorry.
Said to be called the X4, it would be to the X3 what the X6 is to the X5: a four-door, four seat coupe-ish thing based more around style than functionality.
Considering that the X4 would share the X3's platform, expect similar power trains to the X3. That means the most recent versions of BMW's inline-sixes: naturally aspirated, turbo'd, and (hopefully) diesel.