The term, "Iron Horse" was meant to venerate the steam locomotive back in the day when horses were used to run machinery. As time when on, so the story goes, companies that operated trains made a crucial marketing mistake (back in the day when automobiles showed up), believing they were in the railroad business when they actually were in the transportation business. For most who own and operate motor vehicles, I think it's pretty well understood that a car is transportation and not a hobby. If you can get around without having to shell out the expense of car ownership, it makes sense you'd be, living car-free. I can easily get around without a bike but I own and ride one-- it's more a hobby, probably a bit like many who owned the first cars. But, pretty quickly, many came to understand that car ownership literally and figuratively expanded your horizons--