Why would you want to keep old, unsafe tires on your car? If you want the look of OE Redlines for show, I suppose that would make sense, as new ones are quite expensive. But not for driving. I have a friend that (stupidly) brought his highly modified TR6 up to 90 mph when his OE Redlines blew (three at once). He is lucky to be alive and unscathed. His TR6 didn't fair quite as well. Totaled.