Crabbing

If you look in any of the service manuals there are some measurement points. Some guys talk about "stringing" the car, etc, but be aware of little things that can "get" you like the front track wider than the rear ETC, not to mention wheel offset and front/ rear tire sized difference

Nope, - works just fine with diff wheel spacers and different offsets.
Racecars change all that regularly .

Those holes in the frame are called "datum points" .