Устранить ошибку: "имена членов не могут совпадать с типами, в которые они входят" - C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace lab
{
    class Program
    {
        static void Main(string[] args)
        { }
        class Vehicle
        {
            public string Model;
 
            public string CountryOfProduce;
 
            public Vehicle(string model, string countryofproduce)
            {
                Model = model;
 
                CountryOfProduce = countryofproduce;
            }
            public void VehicleInfo()
            {
                Console.WriteLine("Model: {0}, CountryOfProduce: {1}", Model, CountryOfProduce);
            }
        }
        class Van : Vehicle
        {
            public string Owner;
 
            public Van(string owner, string model, string countryofproduce)
                : base(model, countryofproduce)
            {
                Owner = owner;
            }
            public void GetVanInfoOwner()
            {
                Console.WriteLine("Owner: {0}", Owner);
            }
 
        }
 
        class Program
        {
            static void Main(string[] args)
            {
                Van auto = new Van("Test LtD", "Fiat", "Italy");
                auto.GetVanInfoOwner();
                auto.VehicleInfo();
                Console.ReadLine();
 
            }
        }
    }
}