The concept of a wide profile software for diagnosing and assessing the condition of a car. Can be installed on a computer, laptop or tablet. The program works together with an adapter, an oscilloscope and a video endoscope. It can be used both by employees of service stations and car services, and by car owners. The assessment is made according to the following criteria: exterior, interior, chassis, transmission, engine, electrics. Each criterion includes several parameters. Each parameter is evaluated according to the 0-100% system and affects the evaluation criteria. The evaluation criteria, in turn, affect the overall evaluation of the car.