Unfortunately, this debate has been going around and around for quite some time. All we have so far is some anecdotal reference to "I heard of a guy with a B6 Cab whose B7 airbag went off". And some people have heard that the B7 hadn't gone off when the passenger's side did. I can also see the reluctance of anyone to commit to writing what they have done or had happen with airbag deployment for fear of a problem with their insurance, so I guess we will never know for sure.
What did we do in the days before SW airbags? We used our seatbelts, which will prevent more serious injury to the driver than an airbag ever will. I still have my Nardi wheel from my 1973 BMW 2002. I shudder to contemplate getting in an accident with that thing in my chest, but I drove with it for many years without incident or a second thought. There is a reason why the airbag is called a "supplemental restraint system" - because its not the primary restraint system. Seat belts are. When seat belts were first introduced, there were a lot of the same arguments!
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