Bought a Clubman S/JCW as a ‘cherished’ second hand last year…love it, properly nippy, about 40mpg on a decent run and enough room for 2 bikes in the back (just…usually end up on the roof). Took it to Austria in the summer, twisty alpine roads were a lot of fun :) That said it’s had it’s fair share of niggles – timing chain replacement at 30k being the most annoying.
As wingnuts says stay away from the bigger wheel sizes, tyres end up pricey and the ride’s harsh (even without runflats). And definitely steer clear of sports suspension if you like comfort – likely good for track days, not good for speed bumps :(