The two cylinders were configured in parallel rather than in the V-format used in the first Petrol driven Peugeot, and above the rear axle to which it was linked by a chain-drive.
A maximum output of between 5 and 8 hp (6 kW) of power was delivered to the rear wheels via a chain-drive mechanism.
The Type 21 featured a carriage format coupé body designed to accommodate up to four people.
At that time a "coupé" automobile was broadly similar to a closed two-door carriage but without the horses.
Whereas it would not be completely correct to refer it as a coupé, the design was indeed a "berline" body work as in horse drawn carriages.