Does anyone know if 15" wheels will fit a 2018 Cooper S?

I have the 18" cup alloys but was thinking of 15" wheels with winter tyres in case of snow, just need to know if they'll fit over the brakes (are all brakes except JCW the same?)




Thanks

 

Funny, this is a topic over in General as well. Consensus is that we don’t think so, based on eyeballing a 16” wheel. Seems doubtful there’s room. 16s have pretty high sidewalls though, and you could also go a little higher for more ground clearance.