I'd love to know what suspension they were running. There's different levels of kits from several suspension vendors and I've checked out them all. Totally removing the stock suspension for coil-overs, etc. is not for me, I've got a new Mustang for that, but maxxing out the original configuration is definitely OK, such as the kits from Hotchkis and Firmfeel. One of these days I'm going to get out to one of the larger shows and hopefully see first hand which options work best on the autocross & track day fun.
Later, Jim