Toyota is about to expand its lineup of plug-n hybrid vehicles even further. They will preview a new model with the NS4 concept at the 2012 Detroit Motor Show. The NS4 seems to feature a very futuristic design, judging by this teaser shot they’ve released, and it will showcase an advanced plug-in hybrid drivetrain. Not much else revealed about the car by Toyota, for that you have to wait for 2012 which will arrive in 10 days!