[Steve XC60]

I am not sure whether V90CC wheels can automatically be used on V90s... but I could be wrong.

I think V90CCs can be:
235/55R18 - 7,5x18x50,5
235/50R19 - 7,5x19x50,5
245/45R20 - 8x20x49.5
245/40R21 - 8x21x49.5
https://www.volvocars.com/uk/support...and-tyre-sizes

Whereas I think V90s can be:
225/55R17 - 8x17x42
245/45R18 - 8x18x42
255/40R19 - 8,5x19x47
255/35R20 - 8,5x20x47,5
245/35R21 - 8,5x21x44,5
https://www.volvocars.com/uk/support...and-tyre-sizes