The current Peugeot 405 is 4,408 mm long, 1,714 mm wide and 1,406 mm tall, on a 2,669 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 405, 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.