Well, from the info I can find at the site, it seems to say the assembly replaces a coil spring. What about applications that have rear leaf springs? What is the ride quality on the rear where the air spring is fighting the leaf spring? Would one have to fabricate a four-link rear suspension to get full benefit of the air springs?
Then you have to buy a compressor/reserve air tank assemblies. It is now getting expensive just to have AIR-RIDE (IMO).
It would be nice if these air springs (or whatever the correct terminology is) could be adapted to work with the LINC MARK VII system where it has a compressor, height sensors and solenoids to individually regulate each air spring. Where would you store the tanks in a convertable?
I would investigate further and price the complete installation.