The use of self-levelling rear air suspension available in Caprice brought advantages when hauling heavy loads and improved vehicle dynamics when towing. Safety in the WH model was also enhanced, with the addition of side impact head & torso airbags and pyrotechnic seat belt pretensioners along with drivers steering wheel and passenger dashboard airbags all as standard. If the seat belt pretensioners trigger, the doors automatically unlock, both engine and fuel pump shut down and all interior lights will switch on. Also new to the WH are the electric wing mirrors, which when reversing, the passenger mirror faces downwards to assist the driver when parking, thus preventing kerbside wheel damage.