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The 9/25 PS was a car produced by the high-end car manufacturer German Opel from 1916 to 1922.

The 9/25 PS was introduced in the height of the war as a replacement for the 8/22 PS, in turn evolution of the 8/20 PS. As often happens whenever you are faced with an heiress of a model, the displacement and composition tend to aim higher. Also in this case did not appear exception: the 9/25 PS mounted in fact an engine to 4 cylinders in line of 2332 cm ³ with distribution side valves, and power up to 28 hp at 1600 rev / min.

The rest of the mechanics of tip was also traditional and mounted a drive with cardan shaft with clutch cone and change 4 speed.

The chassis was walking beam steel frames mounted auxiliary and the usual suspension rigid axle and semi-elliptic leaf springs, as well as the usual braking system band type on transmission.

The 9/25 PS reached a top speed of 65 km / h and was offered in versions single- phaeton, torpedo, limousine and a special Landaulet that also incorporated features from double-phaeton.

It was produced until 1922, when it was replaced by the 9/30 PS and 10/30 PS.