You're missing something. Horse-like animals actually did develop cars. They only had to evolve into humans and build up a technological base before they could

You're missing something. Horse-like animals actually did develop cars. They only had to evolve into humans and build up a technological base before they could do it. Over a very long period of time, animals developed cars. Now that same development process is remarkably faster, and robots are being developed. The horse analogy is perfectly valid.