I have 4 Fittipaldi Mono's (15x7) mounted on Goodyear Eagle GT + 4, P225/60 R15 tires. These were on an "87" 635 no issues with fit, however dia. is off slightly affects speedo a few percent. They have 1 summer season on them (1000-1200 miles). $1200. less shipping from NH Upgrading / lowering suspension this winter and changing to 17". Don Cloutier Exeter, NH