Hi!Since I do not know anything about diagnostic tools I have to ask here are the tools car manufacturer specific only or are there (reasonable prized) multi manufacturer tools available? Like LR and GM compatible. I've got a -99 Cadillac Seville and -02 RR. The Caddy is because of the smooth ride and good seats for longer rides (since my back is pretty much done) and RR of course of the air springs and enough room for two big dogs + my wife and her luggage on our way to the country cottage... It would be nice to have one tool for both vehicles witch are getting old and starting to have all sorts of troubles. Mainly linked to suspension. Both.