I was just thinking out loud. Quite sorry for that... But just like you said, Suspension, Brakes and Traction are key for a fairly competitive track car. We have quite a few coilovers here that came from Taiwan... BC, D2, Advance, Emotion, and so on. Usually, 32 dampening settings, and you can specify the spring rates ( I was kinda leaning more on 6 upfront and 4 at the rear) For brakes, initially it'll be goodrich lines and some hi temp pads. Not quite sure if there are BBK's for our type of Corolla. Sometimes it just gets so frustrating when your engine is too slow for the chassis.