Ray, you're seeing this as way more complicated than it is.
You weigh the footprint at each wheel and THAT tells you volumes about the stance of your car. From that, you can determine where to add or delete weight at the car's corners (each wheel) to get your car balanced as you want it for the application you point your car towards, meaning, how it will handle under specific circumstances. The weight balance for a drag car is a LOT different from a road course car and from an oval car. The set-up of each is based on a lot of real-time experience of lots of racers out there and is relatively easy to induce and change (if you have adjustable suspension components).
If you have good suspension design, these weight balance tweaks can be done very quickly (watch the NASCAR guys giving a corner "a few turns" in the pits - all they're doing is adding/subtracting weight from a specific corner of the car by increasing/decreasing spring rate on that wheel on a coil spring).
All of this stuff is simple, once you unnahstan it, right?