I used an RX7, all I did to the tuning was move the brake bias to 40, increase the stiffness of everything by about 3 .points on the slider, moved the camber about 5 down on the front and 2 on the rear, gave it some toe out in the front, neutral in the rear, downforce max cornering, anti roll bars at 6 in the front and 4 in the rear. Diff settings, I dont remember exactly what I did here but make sure you set the preload to atleast half otherwise you wont get the ass out. Hope this helps.