using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Car c = new Car("belladonna", 75, 15.5);

        c.Registration = "T854WUM";

        c.AddOwner("Wendy");

        c.AddOwner("Wendy2");

        c.AddOwner("Wendy3");

        c.Drive();

        c.Refill();

        Console.Write(c.Describe());

    }

}

​

public class Car

{

    private string colour;

    private int miles;

    private double fuel;

    private string registration;

    private List<string> owners = new List<string>();

    public string Colour

    {

        get { return this.colour; }

        set { this.colour = value; }

    }

​

    public string Registration

    {

        get { return this.registration; }

        set { this.registration = value; }

    }

​

    public int Miles

    {

        get { return this.miles; }

    }

​

    public double Fuel

    {

        get { return this.fuel; }

    }

​

    public List<string> Owners

    {

        get { return this.owners; }

    }

​

    public Car(string colour, int miles, double fuel)

    {

        this.colour = colour;

        this.miles = miles;

        this.fuel = fuel;

    }

​

    public string Describe()

    {

        string ownerNames = string.Join(", ", this.owners);

        string description = "This car is " + this.colour;

        description = description + " and has the registration " + this.registration;

        return description; //"This car is " + this.colour + " and has the registration " + this.registration + " and has " + this.Miles + " miles on the clock" + " and its previous owners are " + ownerNames + "has" ;

    }

​

    public void Drive()

    {

        this.miles = this.miles + 10;

        this.fuel = this.fuel - 0.9;

    }

​

    public void Refill()

    {

        this.fuel = this.fuel + 20;

    }

​

    public void AddOwner(string owner)

    {

        this.owners.Add(owner);

    }

}