Hoping to cash in on the high-style crossover craze, Munich is about to debut the production version of the 2015 BMW X4, as evidenced by these spy shots captured in Europe. The larger BMW X6 has been one of the more controversial entries in the premium crossover segment, raising the question of whether a 5000-pound-plus "crossover coupe" makes any rational sense. With stylish, but not particularly practical, entries in the segment from the Acura ZDX to the Range Rover Evoque, and even the budget-priced Nissan Juke, it seems practicality is no longer a prerequisite for crossovers.

Like the X6, which is based on the more conventionally packaged X5, the X4 will share the majority of its hardware and drivetrain with the bread-and-butter X3 crossover, or "sports activity vehicle" in BMW-speak. That means we'll see the familiar 240-hp 2.0-liter TwinPower turbocharged I-4 and 300-hp 3.0-liter turbo I-6 as in the X3. The X3 will also reportedly get a turbodiesel I-4 option, but it's unknown whether the X4 will offer that option in the U.S., although a diesel is a given for European markets.

Like the X5, X6, and X3, the X4 is expected to be built at BMW's plant in Spartanburg, South Carolina.