The two full-size airbags can be inflated in two stages,
depending on the severity of the impact. In a low-speed crash,
the airbags are only partially inflated, thereby minimising
discomfort to the occupants.  Porsche Side Impact Protection
System (POSIP)  POSIP, fitted as standard, consists of side
impact protection beams in the doors and two side airbags on
each side, namely a thorax airbag located in the side of each
backrest and a head airbag incorporated within each door. Each
airbag has an approximate volume of 8 litres, ensuring excellent
protection in the event of side impact.  Additional safety
features include the headrests which form an integral part of
each seat, an energy-absorbing steering column, three-point seat
belts with height adjustment (Coupés only), seat belt pre-
tensioners and force limiters and energy-absorbing elements in
the dashboard.