The GT if you do the T4 parts mods I hear is pretty good on hardpacked surfaces. Without them the GT is more in its element in loamy conditions.
I personally would hold off and see what comes out from AE, lots of people are wanting a new GT, I hope they don't dissapoint again, at least release some sort of upgrade kit or even a parts and conversion list to do the T4 conversion that there team drivers are using.
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