Как здесь сделать сортировку? - C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace Speed
{
    class Speed
    {
        private Speed(double kmPerHour)
        {
            KilometersPerHour = kmPerHour;
        }
        
        public static Speed FromMetersPerSecond(double metersPerSecond)
        {
            return new Speed(metersPerSecond * 3.6);
        }
 
        public static Speed FromKilometersPerHour(double kmPerHour)
        {
            return new Speed(kmPerHour);
        }
 
        public static Speed FromMilesPerHour(double milesPerHour)
        {
            return new Speed(milesPerHour * 1.609);
        }
 
        public Speed AddMiles(double milesPerHour)
        {
            return new Speed(KilometersPerHour + milesPerHour * 1.609);
        }
 
        public Speed SubstractMiles(double milesPerHour)
        {
            return new Speed(KilometersPerHour - milesPerHour * 1.609);
        }
 
        public static Speed operator +(Speed speed1, Speed speed2)
        {
            return new Speed(speed1.KilometersPerHour + speed2.KilometersPerHour);
        }
 
        public static Speed operator -(Speed speed1, Speed speed2)
        {
            return new Speed(speed1.KilometersPerHour - speed2.KilometersPerHour);
        }
        public static bool operator > (Speed speed1 , Speed speed2)
        {
            return speed1.KilometersPerHour * speed2.MilesPerHour > speed1.MetersPerSecond * speed2.KilometersPerHour;
        }
        public static bool operator < (Speed speed1, Speed speed2)
        {
            return speed1.MetersPerSecond * speed2.KilometersPerHour < speed1.KilometersPerHour * speed2.MilesPerHour;
        }
 
        public double KilometersPerHour
        {
            get { return _kmPerHour; }
            private set { _kmPerHour = value; }
        }
 
        public double MetersPerSecond
        {
            get { return _kmPerHour; }
            private set { _kmPerHour = value * 3.6; }
        }
 
        public double MilesPerHour
        {
            get { return _kmPerHour; }
            private set { _kmPerHour = value * 1.609; }
        }
 
        private double _kmPerHour;        
    }
 
class Program
    {
        static void Main(string[] args)   
        {
            Console.Write("Введите скорость в метрах в секунду ");
            Speed speed1 = Speed.FromMetersPerSecond(Convert.ToDouble(Console.ReadLine()));
            Console.WriteLine("speed1 = " + speed1.KilometersPerHour);
 
            Console.Write("Введите скорость в километрах в час ");
            Speed speed2 = Speed.FromKilometersPerHour(Convert.ToDouble(Console.ReadLine()));
            Console.WriteLine("speed2 = " + speed2.KilometersPerHour);
 
            Console.Write("Введите скорость в милях в час ");
            Speed speed3 = Speed.FromMilesPerHour(Convert.ToDouble(Console.ReadLine()));
            Console.WriteLine("speed3 = " + speed3.KilometersPerHour);
 
            Speed speed4 = speed1.AddMiles(1);
            Console.WriteLine("speed4 = " + speed4.KilometersPerHour);
 
            Speed speed5 = speed1.SubstractMiles(1.33);
            Console.WriteLine("speed5 = " + speed5.KilometersPerHour);
 
            Console.ReadKey();
            
            }
        }
    }