The current Peugeot 309 is 4,051 mm long, 1,628 mm wide and 1,380 mm tall, on a 2,469 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 309, 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.