my sparse googling on the subject - installing airbags in a car that never had airbags (consider a 1988 Hyundai Excel, but any pre-airbag car really) - suggests the idea is absolutely insane on all levels.
is it? I figure the costs and the types of owners combined become prohibitive as to preclude any average shop even thinking about it, but are there such specialty shops that will “retrofit” bags for owners that are just that insane? I have heard the bags must be replaced or serviced on very long intervals. I also presume there are no after market systems.