Did you mean "on" or "or"?
Using OOP to implement a vehicle is a no-brainer. It's a completely standard model for games.
Extending the animal class to make a car would be weird though.
One point of OOP isn't that you make classes, but that the classes you make can be easily duplicated and automated.
So you can make an animal with a few simple behaviours, use your animal prototype to make a herd or flock, and suddenly you've got emergent semi-intelligence, which you can define by changing a few lines in the prototype.
It's not just a way of giving properties to something that's kind of like a real object - it's a way of simplifying automation and bulk updates of related entities.
