As you know the zephyr was sadly canceled and I've been thinking when is the next realistic airbags gonna come out to the forums. I know Alex 126 makes a airbag mod but that's on only bootleg sites and can only go in one car. I'm not sure but I believe jsZ's one was a addon that you could install and put into any car using vehicle configuration. Another thing is Alex 126's airbag mod its just a solid block and if you were the put a dummy in that car the dummy just through the airbag and it tends to glitch out from what I've seen and it also its just a solid shade and there is no detail in the look of the airbag. In jsZ's you can see like a real airbag how the design of his side airbags make little humps like in a real airbag. jsZ's also is a solid shape and it bounces out and deflates like a real airbag so if you were to put a dummy in the car it actually bounces off the airbag and deflates it like a real one. In the end I'm not trying to hate on Alex 126 or jsZ I'm just comparing them and seeing if eventually we will get a airbag addon for all the beamng cars just by going into glass into the vehicle config and see if we can try and get it as close to jsZ's airbags as possible. Also now is more of a perfect time because we have the agent y universal dummy mod that makes it possible to add passengers to can official car or any mod car. back then was not as much as a good time to make airbags because we only had the drivers passengers and loads mod and that mod only allowed you to put dummies' in official cars that were around when that mod was made because the mod used additional modification to put them in but now with the agent y dummy mod it uses the license plate design to put the dummies' in giving the ability to put dummies' in basically any car made or that is in beamng drive.
when the technology is ready. Jsz method was pretty good but it apparently was just a dirt expanding texture with a mesh or something.