My car has the original FFH 17 inch wheels. I picked up my spare tire "donut" from my dealer today, they mounted and balanced the wheel and tire for me, they don't buy it as a unit, they buy the tire and the wheel separately. the cost was $255.00 It's a T16x4T wheel and the tire is T125/80/D16 97M. The overall size of it measures 24 inches and the tire that is on my car now measures about 25.5 inches. The part number of the wheel is CV6Z1015B , the tire number is UHK16 12580 (S400 BW). The spa