Link to my experience with RS-4s and other tires related to track wear and grip.
https://www.bimmerpost.com/forums/sh...php?p=24632850
Can someone confirm that Hankook discontinued production of the 275/35/18 RS-4? That makes no sense.
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MCS 1WNR with 600/900 spring rates / Vorshlag camber plates / Apex ARC-8s with MSI studs / Stoptech Trophy ST-60/ST-40 / Cantrell Motorsports Brake Duct Kit / Cobalt Friction XR1, XR2s or PFC-11 pads / UUC Corsa axle-back with Fabspeed HFC and x-pipe / Schroth Quick Fit Pros / HANS Sport II / AA green filter / Coolshirt with large bag / Aim SoloDL with SmartyCam / CSF Radiator