Toyota develops rear-collision airbag

We've got airbags in the front, airbags to the side, even airbags on the hip -- and now Toyota's installing the first rear-collision airbags into its Japan-only iQ minicar. The bags are designed to protect rear seat passengers, and inflate from above the rear window to blanket your noggin and reduce impact force to the head by half. The new system will be installed in iQ's by the end of the year, no word on whether it'll come to the States anytime soon.