Well, although this may be a nice thought, many of the feilds that are on the tuner cars are all set to default settings as well, i.e. bound/rebound, toe, camber, stabilizer, TCS, ASMs, ride height, LSD... So, realy, when you look at it this way, I'm affraid that this just won't work on many cars, if any... You also have to look at things like the car's weight, natural weight transfer, body roll and so on. All of these factors just won't cut it, if all you do is change the spring rates for these cars... Maybe I'm wrong, but I just can't see it working very well, if at all... There are no short cuts to setting up a car... The closest you'll come is getting a set up for say a Skyline Mspec Nur, and applying it to a Skyline Vspec Nur, or some other kind of comparison, like a Bathurts RX7 and a Spirit RX7... but even then, odds are that the tune will still work better on one then the other... Using an untuned "tuner" car's settings, as a base set up for another car like it, just won't work very well... I just don't want this going around and then having to explain it over and over again... Take your time, learn to tune and have fun... It'll take a bit of time, but I can assure you that you'll get more out of tuning your own cars, then any other alternative will bring you... Later, Ed...