As far as airbags . My thinking on them is they only really work if your not wearing a seatbelt . Right? I mean a shoulder belt should keep you from hitting the steering wheel.
It is my understanding that air bags can be DEADLY without seatbelts.
A buddy of mine just wrecked a late model car with air bags, both deployed, and he is bruised up pretty bad but other than that he is fine. I believe the airbags helped him get through the accident better. So airbags are meant to work with shoulderbelts NOT replace them