What Exactly Is Horsepower, Anyway?Jason Torchinsky7/30/13 12:46pm31112EditPromoteGo to permalinkLike almost any automotive publication, we use the term "horsepower" all the time. It's one of those words that seems so straightforward. What is horsepower? Why, it's the power of a horse! What does that mean? Physical power? Political? Sexual? What horse? How is it measured? Let's find out, with pictures!