I guess they are the "SUV " MCCHi Chris, I appreciate this is an old thread but I’ve just ordered x4 235 55 18 Michelin cross climates for my T6. Wondered how you found them?
I fitted them to my Volvo xc40 and after some messing about it was 255/45/20 size I fitted
They are excellent tyres, their road manners are superb, and for my XC40 (which is pretty fast by my standards), they are as good as the Pirelli summers that were OEM - in the dry summer; and excellent in winter; although I haven't used them in deep snow.
Our Vel Exec 204 4mo, still has Nokian weatherproof, and for our use, this is the correct tyre, as they are better off-road than the MCC; but the MCC are defiantly a better summer performance tyre.
So you've defiantly got the right size imo; the MCC are great all year round, and they are pretty good when you press the "loud peddle" and get a move on.
Interested to know how you get on.