The current Seat Mii is 3,557 mm long, 1,641 mm wide and 1,478 mm tall, on a 2,420 mm wheelbase.
Only one generation of this model is in our catalogue, so there is no size history to compare yet.
Exterior figures are manufacturer specifications for the Mii, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.