static void Main(string[] args) { bool exit = false; Car thisCar = new Car(); do { Console.WriteLine(StandardMessages.DisplayMenu()); switch (Console.ReadLine()) { case "1": CarInformation.CreateCar(thisCar); break; case "2": thisCar.Accelerate(); break; case "3": thisCar.Brake(); break; case "4": exit = true; break; default: StandardMessages.DisplayChoiceError(); break; } Console.WriteLine(StandardMessages.DisplaySpeed(thisCar)); } while (exit == false); }