I have an 07 Phaeton, 40' dp. I need to replace my four rear tires, currently Michelin XZE 275/80R22.5 LRH. My nearest dealer in the Advantage program does not have these in stock. He offered XMEZ in the same size. I can't find any literature about these. Are these a good substitute for the XZEs, or should I look for something else, like the XRV I've been reading about? Any suggestions would be very helpful.