Obsession is a strong word but I grew up with a mechanic as a step-dad and everyone was “obsesses.” Between building cars, driving fast cars like a Porsche was exhilerating. Oftentimes, going to car shows (I enjoy the classic cars), and car races at the Indy 500 there was always a sense of strength and power, if only for an hour. Creating a machine with ones own hands is amazing to see and learn about, if only to hotwire one if SHTF!