Ps

Another good example is a rwd saph and a 3 door.

Swap the hubs off the 3 door onto the saph and it handles better.

Even though afterwards you have:
exactly the same toe
exactly the same camber
exactly the same caster
exactly the same weight distribution
exactly the same suspension rates (dampers / springs etc)

Just purely down to the geometry of the steering arms on the 3 door hub.


Mike Rainbird would be a good one to ask about the exact differences for that example as in my case I started with the better 3 door ones so have had no reason to put them side by side and compare the exact differences etc. But I do know its a well renowned fact it makes a significant difference.