I wouldn't doubt that I am close.
90% of it has to do with tires. If you think of it in physics terms, with angualar acceleration, the force that is keeping you rotating is the Force Centriple (acceleration towards the center)
The only forces are Force of friction, Force normal, and Force of gravity. To increase friction, you must increase your friction static constant (mu static) or increase your force normal.
Suspension basicly makes your car apply as much of its weight to all four wheels while turning, keeping your normal as close to constant as possible. Stiffer springs, stiffer sway bars, and better dampers try to apply the cars weight to all wheels, instead of having 2000lbs of force on the right tires and zero on the left.
As far as my setup...
Tein HA's (8kg front, 6kg rear)
ITR rear swaybar
GSR front Swaybar
195-50-15 Potenza S03's tires (soon to be azenis)
rota 15*6.5 wheels
Various Tie bars
With any good suspension setup and some R compound tires will defently throw you over 1.0g of lateral acceleration.