C# 静的メンバー

class Car
{
public string name;
public static int seats;

public Car()
{
    name = "マイカー";
}

public void Display()
{
    Console.WriteLine(seats);
}

}

class MainClass
{
static void Main()
{
Car.seats = 5;

    //インスタンスを作成
    Car test = new Car();
    test.Display();
    Car test2 = new Car();
    test2.Display();
}

}