Passenger space is fine for the front seats, with even six-footers finding plenty of room and support. The back seats, as with any true compact, are a different story: almost no leg room and poor access make them almost unusable for full-size adults. Scoops in the back of the front seats attempt to improve conditions, but don't find much success. Occasional rear-seat riders will be fine, but don't plan on packing four adults in the car on a repeat basis.
The convertible worsens the situation, stacking the top behind the rear passengers' shoulders. In the hatch, cargo space is fair at 23.3 cubic feet with the rear seats folded down, and there's a pass-through for larger objects in the Convertible. Cargo space in the hatch with the seats up is a limited six cubic feet, but a two-position shelf helps make the best use of what's available.
Visibility can be a problem, however, as the beltline and rear passenger headrests are high and seating position low. Even in the Convertible, it's an issue. In the hatch, the small rear window adds to the problem.
We've driven more than a dozen MINIs over the years, and most examples have exhibited creaks, squeaks, and groans even under the 10,000-mile mark, though this experience isn't universal among other reviewers. Wind noise and road noise, on the other hand, are common complaints.