Start with what the Horch 8 is: a car with gasoline engine, from Horch. What it meant takes a little longer.
Under the skin
The engine is gasoline engine. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
In context
Nearby in the Horch catalogue sit the Horch 853 Voll & Ruhrbeck Sport Cabriolet and the Horch 10.
The record
The open record for the Horch 8 carries no verified engine, output, weight or price yet. MotorJury does not fill gaps with guesses; this entry gives the model a home in the catalogue and grows as sourced specifications and photographs arrive. Corrections: corrections@motorjury.com.