We had two new tyres fitted in May 2015 (Goodyear Efficient Grip Performance 205/55/16V). We are now replacing all four tyres. Any suggestions as to how I go about selling the hardly used but clearly part worn tyres? Do I approach those part worn tyre places in town, or am I better off trying eBay, Preloved, Gumtree, etc? I personally would never buy part worn tyres, but I know that some people do.