Saab Active Head Restraints
Saab Active Head Restraints or SAHR is a system to protect against automotive whiplash injuries introduced by Saab in 1997. It was launched when the Saab 9-5 was released for the 1998 model year and had been part of the standard equipment on the Saab 9-3 and 9-5 since.
Source: Wikipedia — Saab Active Head Restraints (CC BY-SA 4.0)