There's a place in Tampa, I think the name is HK tires or something like that (2 letters) that deals in used performance tires. In Europe, they have pretty stringent vehicle inspections, so tires are junk to them with about half the tread life left. This company gets the tires shipped over here and sells them very reasonably. They are all pretty much high performance/speed rated tires and can get them in about any size.