I own a Standard 85 with air suspension and while it was in for service I had the opportunity to drive an 85 with the coil suspension and form a personal comparison of the two. The Coil suspension was tight and controlled, but I though it was just a little more "jiggley" than the smoothness of the air suspension. Having said that, I could happily live with a coil suspension car. The Coil suspenson car had the 19 inch wheels, and my car has the 21 inch wheels with the air suspension and I thought that due to my 21s it would be just the opposite. This comparison was done on the same roads I drive every day.