News Source: topspeed.com

Although BMW  introduced the 3 Series  in 1975, it took the Germans 11 years to develop a wagon version. The first 3 Series Touring arrived in 1986, four years into the second generation model. Since then, BMW has offered a wagon body style with each generation of the 3 Series, becoming an important player in a segment that also included strong competitors from Audi  and Mercedes-Benz.  The current-generation 3 Series Wagon surfaced in 2013, nearly two years since its sedan sibling was launched. Now that BMW is already working on a facelift for its popular sedan,  it seems we won’t have to wait that long for the wagon to arrive.

According to a new batch of spy shots we received from our paparazzi, development of the facelifted 3 Series Wagon is well underway. The grocery getter is set to receive the same visual upgrades as its sedan brother, as well as a new lineup of gasoline and diesel engines. Both the 328i and the 328d will be more powerful, with the former to become the 330i. The wagon is expected to make its global debut at the 2015 Geneva Motor Show  in March.

Exterior changes are obviously in line with those of the sedan model. Up front, the wagon receives a reshaped kidney grille and revised headlamps, as well as a remodeled bumper with a sportier design. The spy shots also suggest the 3 Series wagon gains the company’s adaptive LED headlights as an option, formerly available only on the 4 Series model.

Rear fascia updates are still a mystery with all that camouflage in place, but we expect a pair of revised taillights, a new bumper and possibly a slightly reshaped tailgate. Naturally, the body kit will be different for the standard model and the M Sport version, with the latter to boast more aggressive cues. Interior changes will be more subtle, with most updates to occur in the technology department. The center stack and the dashboard should see a few nips and tucks, while the upholstery and trim options list will grow to include a couple of new choices. Storage room is likely to remain the same until the next-generation 3 Series arrives. This is where the 3 Series Station Wagon receives the most significant changes, as BMW is set to introduce a series of brand-new engines. In the U.S., the 328i will become the 330i and gain a 2.0-liter four-cylinder rated at 270 horsepower, a 30-pony improvement over the current model. The 320d should receive updates of its own, with the 2.0-liter oil burner to crank out around 200 horses. Naturally, both engines will hit showrooms with improved fuel economy numbers. Both the 330i and the 328d will continue with standard xDrive in the United States. It’s way too early to talk about pricing since the compact wagon has yet to be revealed to the world, but it’s safe to assume it will carry a minor premium over the current model’s sticker. As of December 2014, the 3 Series Sport Wagon retails from $41,950 with the gasoline engine and from $43,450 with the oil burner.