All it took was an old mower and a homemade engine to launch his experiments with an agricultural locomotive. Nine years later, he became chief engineer at Detroit Edison Company’s main plant. “Follow where your heart leads,” reads Susanna Tamaro’s book title—and in Ford’s case, his heart led him to Rosabella. No, not a woman, but his first gasoline-powered car: a simple frame with four bicycle wheels, fueled by an inventor’s pride and thirst for experimentation.