According to PennDOT, Pennsylvania law does not dictate a minimum or maximum age for owning/registering a vehicle. So if you are a younger driver you should be able to own and register a vehicle no matter what your age is. The application for registration asks for either a PA driver's license number or a Photo ID number so it does not appear that you have to be a fully licensed driver to register a car in Pennsylvania.
To find out the exact procedures to register a car in PennDot's Driver and Vehicle Services. This PA state agency can tell you if there will be any issues with you buying and registering a car with only a learner's permit.
Even though you can own and register a car at any age in Pennsylvania you should check with auto insurance providers to see if they have any restrictions regarding an owner’s age and licensing status. Many will require that you be fully license, have a fully licensed driver on the policy with you or start your policy if you are able to obtain your full driver's license within a short period of time.
It normally is possible to get a policy with a learner's permit. Depending on your age, the insurance company will probably make you acquire a regular driver's license within thirty days of your policy's inception date. You need an operator’s license to be on a policy, but carriers understand that you may have a learner's permit before you have an operator’s license.
You can click here to get a quote for auto insurance to compare PA rates. With most our carriers they will allow "permit" to be selected on the driver’s screen, only when another valid licensed driver is included on the policy.