The body structure of the 2013 Porsche Cayman is now predominantly aluminium, with the rest fashioned from a combination of magnesium and hot formed high-strength steel.
The Cayman is equipped as standard with full-size and knee airbags, which are inflated in two stages depending on the severity and type of accident (e. g. frontal or offset frontal). In less serious accidents, the airbags are only partially inflated, thereby minimizing discomfort to the occupants. So that should to tell you right away that these are dual-stage airbags.