Take a close look through the gallery and you'll see that this test car sports some light camouflage at the back, but it does nothing to hide the new rump. Compared to the sedan, the longer roof looks to provide extra headroom for rear passengers, along with a few extra cubes of cargo space. The rear glass sits more upright, and a spoiler visually lengthens the five-door. The wagon's front end is identical to other recent spy shots of the future Panamera.
We don't have any technical details about the wagon, but it would likely share powertrains with the sedan. The cabin layout would probably also be identical, including touch-capacitive controls to replace traditional buttons.
A Panamera wagon makes sense in the Porsche range. The long-roof version would offer all of the sedan's performance but have a little more room. If a customer with a family doesn't want a Cayenne, this would be the obvious alternative, and the massive 911 range shows Porsche isn't afraid to build a bevy of model variants. If you think a Panamera station wagon seems odd, just remember people thought a Porsche SUV was weird, too. And, of course, that move turned into a huge success for the company.