The two from the back have 3mm and I am giving them away as useful spares as part of this sale. Michelin are no longer making the Cross Climate 2 and the new version for this size is not going into production until Feb 9th or 17th. 

These are amazing tyres.. and I don’t want to change but I do a lot of driving and because my car is all wheel drive I have to have all four the same and I can’t leave the 3mm unchanged without a replacement plan. So I have decided to buy 4 new - different make. Shame Michelin didn’t think everything through! Open to sensible offers