Gorillas are way too big for that. They would require larger, more expensive cars and more food than, for example, Bonobos.

You could also try to use pigeons (https://en.wikipedia.org/wiki/Project_Pigeon)

That's probably not as stupid as it sounds. Well, actually it is, but if horses can drive their carriages autonomously, could we teach gorillas to do the same for cars?

You know there's a very famous sci-fi musical about why this would be a bad idea!

https://www.youtube.com/watch?v=JlmzUEQxOvA