GM made a limited run of Chevrolet fleet cars with "ACRS" way back in 1973,
7 years before the Europeans had airbags. Then in 1974 it was offered on Cadillacs and Buicks as an option for people who hated seat belts. But then what happened? Did few people order those airbags, and they faded away until foreign cars started flogging them in the 1980s?