Don’t cheat. According to the query on the official website of the second-hand cars, Porsche official second-hand cars refer to second-hand cars officially sold by Porsche and provided with comprehensive guarantees, including warranty, roadside assistance, repair and maintenance and other services. Porsche, a world-famous luxury car brand owned by Volkswagen of Germany, also translated as Porsche, is headquartered in Stuttgart, Germany and is one of the main representatives of European and American cars.