Please help I want to get new tire for my 635csi. Tires currently on the car are the Michelin TRX tires which measure 220 55 390. Were on it the least 4years. I was reading the manual and looking on the door panel & it recommended I can also use 195 70 14 or 201 70 14 if I wish. Can I really do this. The tire I want to try is the Pirelli P3000 cinturato. If I can not use this tire which can I use with OEM wheels and not the TRXs Thanks for the help