The Horch 12-28 PS was a car that produced between 1910 and 1911.

From the very beginning of starting his company, August Horch based the model range on engines with either a small or large engine displacement. After the company founder had left the company in 1909, an intermediate model was launched with a modern engine in the medium displacement class.

The cylinders were no longer cast in pairs but rather in a single block. This design remained in production with enlarged displacement until 1922. The engine fitted to the 12-28 PS was a four-cylinder in-line engine with a displacement of 3,177cc. The engine had a maximum power output of 28hp at 1,400prm. This have the car a top speed of 70 km/h and it achieved a fuel consumption of 15 litres per 100km.

Just 90 cars were built, with them costing 10,750 marks for the chassis.

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