Passenger & boot space
How it copes with people and clutter
While the M240i has plenty in common with the larger BMW 4 Series, its dimensions are significantly more compact. You won’t really notice the difference when sitting in the front, though, because there’s still plenty of head room and the seats slide back a long way on their runners.
Six-footers won’t fancy a long trip in the rear seats, but adults will feel a lot less squished than they would in the back of the Audi TT (the Porsche Cayman is a two-seater only). If you plan to carry more than one passenger on a regular basis, you’d be better off looking at the BMW 2 Series Gran Coupé or Mercedes CLA. As a bonus, both those cars have rear doors.