Toyota is developing a new airbag to reduce rear passenger injuries in side-on collisions.
The rear seat centre airbag deploys when the vehicle is hit side-on, coming out of the roof and acting as a barrier between passengers sitting alongside each other.
Toyota, which recently became the first manufacturer to offer rear impact airbags on the IQ supermini, calls its innovation the Supplemental Restraint System (SRS).
The unit is fitted in a large, fixed centre console, which means it will only be available in cars that are family-sized or larger.
No date has been set for when the SRS system will be introduced to production vehicles.