Hello. Since you have been stopped by police two days in a row, I urge you to seek private legal counsel at this time. You may phone me. Tricia Dwyer, Esq. at 612-296-9666. The general rule regarding police stops of motor vehicles is that a police officer (peace officer) may stop and temporarily detain a motor vehicle if the officer has specific, articulable facts which, together with reasonable inferences that may be drawn from those facts, reasonably warrant the intrusion. In other words, to make an investigatory stop of a motor vehicle, an officer must have a reasonable suspicion that a crime has been committed or is being committed. A motor vehicle stop may not be based on ‘mere whim, caprice, or idle curiosity’ of the officer. There are devices that ‘read’ license plates, known by several terms, one of which is Automatic License Plate Recognition. Minnesota law enforcement makes use of such devices. I suggest you google that term to learn about those sorts of devices. All the best.
You are likely getting pulled over because the vehicle you are driving is registered to someone with a suspended license and police believe that person is driving. That is a legitimate reason to stop a vehicle to inquire, though you may not have broken any other traffic laws.
In your case the police have reasonable suspicion to make a traffic stop on the car that you are driving. The registered owner has a suspended drivers' license. In the dark the officer cannot determine who is driving and it is reasonable to assume that the driver is the owner. You do not describe anything the officer has done wrong after stoping you and determining that you are not the registered owner. If other people are being stopped for no reason while driving a black 2008 Grand Prix, then maybe they are being harassed, but in my opinion you are not.
The information that I am providing is general information based on my understanding of your question. You cannot and should not rely on this general advice in making legal decisions. There may be important information that you did not include in your question that could drastically change the advice an attorney that was fully informed would give you. I am not your attorney. My response does not create an attorney client relationship.