Toyota Prius video
Toyota teases the new Prius MPV – Click above to watch the video after the jump

Recently, Toyota teased its second addition to the Prius family during its 10th anniversary party for the automaker's infamous hybrid. Now, Toyota has tweeted that the new vehicle, which obviously takes the shape of a Mazda5-sized MPV, will make its official debut at the 2011 Detroit Auto Show in January.

Rumors have suggested that the Prius MPV will offer seating for seven via three rows of perches, though there's no word on whether or not the larger Prius variant will use sliding doors or stick to a more Kia Rondo-like shape. Expect the Prius' powertrain to be slightly revised for MPV duty, as well, probably with a few more lithium-ion batteries on hand to keep things extremely economical. We'll know more come January, but for now, click past the jump to see a video of the Prius MPV's teaser billboard coming to life.

[Source: Twitter, YouTube]