The current car offers the rear side bags as a option. Dont know if it will become standard.
As for the front bags. You only have 1 drivers and 1 passenger front (dash) air bag.
Are you refering to the dual stage bags?
What dual stage is.... You have one air bag, it has 2 deployment charges. Its typically about a 80/20 split on the potential charges (sodium azide.)
What happens during a accident event with deployment is the intial 80% charge is deployed. The 80% charge inflates the air bag. If the accident is detected by the air bag SDM to be more severe, the second 20% charge is then deployed. What this does is continue to keep the air bag inflated longer.
The 2 different deployments are just a few milliseconds different, but it does keep the bag inflated harder and for a longer period of time.
Logan Diagnostic
www.airbagcrash.com www.ledfix.com