Have you reviewed reliability reports and consumer satisfaction surveys on the MINI vehicles? (It’s a rhetorical question; if you had, you wouldn’t be considering a MINI.)
I’ve known half a dozen people who have owned various MINIs (although not the Countryman model) and they have all required major repairs. MINI dealers have a tendency to classify many repairs as not covered by warranty even when they obviously should be, e.g. clutch replacement within 30-40k miles due to “hard use” even within the 50k powertrain warranty period. They tend to have a lot of other cosmetic and functional defects placing them in about the same level of build quality as a 1980s era Pontiac.
Unless you are doing rally racing (where you expect to replace powertrain components on a regular basis and don’t care about interior build quality) you do not want a MINI of any flavor.