You can't. Once you sign a contract, there is no "buyer's remorse" law pertaining to automobiles. If you sign the contract and then it breaks into 2 pieces on the way home, then you own both pieces.
You need to be more specific in your question. Return a car to a dealer, return a leased car, return a borrowed car to a friend, return a rental car?
No, you can not return the car.
Return a car
After a car purchase, can I return the car?
if think you can return the car you can or if you want to do for him you can do
No you can not return a new car in South Carolina.
Yes you can if you have the receit
My car was crashed and I lost my job. How do I return the finance car to the lender?
You cannot return a car when it came from a car inpound because that is one of the rules of buying a car to them.
That depends on the location from were you are renting and where you are looking to return the car.
Used car return policy in maryland?
Can I return a use car