Actually, airspring suspension dates back into the 1800s. (I’ve been researching this for a project I’m working on). However, GM was the first company to introduce a practical airspring automotive suspension. It was released in something like ’57. GM and Firestone went through great lengths to solve many problems that hadn’t been worked out before. In other words, they came out with the first practical automotive implementation. Their work was feed into the later system used by Lincoln. Again, Lincoln worked with Firestone to solve many of the leakage issues with the original systems. Those solutions lead the way for Lexus and MB. No, GM wasn’t the first to use the idea but they with Firestone did much of the trail blazing. Ford and Firestone solved the leakage issue and made the system truly viable. Unfortunately I don’t have the book at hand so I can quote the title and author but I think it was something like “The History of Air Suspension.” It was written by a guy who worked on those projects while at Firestone.Originally Posted by nota