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My car , a locally built GM vehicle with the old 3.8 V6 and the 4L60E trans , has zero camber and zero toe from the factory.
The straight line stability comes from caster at 8 degrees.
The front end is a standard MacPherson Strut and the rear is a coil sprung IRS.
From the driver point of view the handling is fine and the straight line running is good although a little susceptible to moving around in strong cross winds.
Altering tyres pressures has a huge difference in steering feel.
I suspect the changes result in the pneumatic trail being altered but I am not able to confirm it.
Just some observations.
Peter.
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