No, a car doesn't have a copyright, its not intellectual property. Come on, you should know better than that.
The name of the car and certain components as well as features have copyrighted names.
It didn't stop the Big 3 from taking Preston Tuckers ideas.
That is not what you said.
Technically if you get a toyota and alter the trademarks and logos to make it be a Honda, then you are breaking the law, but I doubt the company would take action.