Side Impact Protection System
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SIPS, acronym for Side Impact Protection System, is a system of protection against side impacts developed by Volvo.
SIPS was released in the Volvo_850_series[1].
The SIPS system worked by having the driver and passenger seat mounted on transverse steel rails, not bolted to the floor as per the standard configuration. In a side impact these transverse rails allowed the seats to crush a reinforced center console during a side impact The SIPS side seat airbags were released in 1994 850 models and became standard beginning in 1995. In 1999, the SIPS system gained the use of the first true curtain style airbags, deploying from the headlining in a side impact. The curtain airbags now have become common in most cars and SUV's and are credited with saving many lives. The Curtain airbags became standard on the 1999 Volvo S80 sedan.