With BMW's new four-cylinder turbocharged engine progressing steadily through the lineup, the X3's adoption of the small but punchy powerplant is far from unexpected. Nonetheless, it's a welcome addition, as we've come to love it in its other implementations.

The 2013 X3 xDrive28i uses the same basic TwinPower 2.0-liter direct-injection four-cylinder as the 2012 Z4 sDrive28i and 2012 328i we've already reviewed, though it rates 245 horsepower in X3 use. It also gets the ECO PRO mode found on the 3-Series turbo four, the better to maximize gas mileage, in addition to Comfort, Sport, and Sport+ modes. The previous 28i's 3.0-liter inline six-cylinder will no longer be available in the X3.

So far, the announcement of the four-cylinder X3 has only been made for Europe, to arrive this spring, but it seems given that it will also make its way to the States shortly after.

Also announced today is the X5 M Sport Edition. Note, that's not an X5 M with a Sport Edition package, but an X5 with an M Sport Edition package. The difference is substantial; instead of a 555-horsepower twin-turbo V-8 under the hood, the M Sport Edition uses the regular X5's engines and chassis, but tacks on M exterior features, including new aerodynamics, 20-inch M alloy wheels, High Gloss Shadow Line trim from the BMW Individual range, xenon lights, and adaptive cornering headlights. In xDrive50i models, it also gets pneumatic self-leveling suspension.

Inside, the M Sport Edition X5 gets an electric-adjust M sport seats, an M steering wheel in leather, shift paddles, BMW Individual antracite head liner, piano black trim, M logo door sills, and a performance pedal set. M Alcantara/Black Nappa leather upholstery complete the look.

Again, this is an announcement of the European model, timed to coincide with the release of the new M Performance diesel models (which we won't get), but given that it's effectively an appearance package with a few minor suspension and wheel upgrades, it could easily make its way to the U.S.--if BMW thinks we'll go for it.