sentences:  Due to success of the test fleet, GM decided to offer the ACRS as an option for full-size Cadillacs, Oldsmobiles, and Buicks for the 1974 model year.Only 10,000 ACRS units were installed for the life of the option, and buyers of these as used cars often were not even aware that they had the airbags, unless they deployed in a collision.GM advertised the system and it worked well, saving lives.