Pass derived class to method which use parent class c#

Question

Today I took part in test in where was the task to add static method getMovingVehicles to already written code. I did it like you can see below, but after passing it online compiler I can see there are errors like:

Compilation error (line 28, col 39): The best overloaded method match for 'Rextester.Program.getMovingVehicles(System.Collections.Generic.List<Rextester.Vehicle>)' has some invalid arguments
Compilation error (line 28, col 57): Argument 1: cannot convert from 'System.Collections.Generic.List<Rextester.Car>' to 'System.Collections.Generic.List<Rextester.Vehicle>'
Compilation error (line 29, col 41): The best overloaded method match for 'Rextester.Program.getMovingVehicles(System.Collections.Generic.List<Rextester.Vehicle>)' has some invalid arguments
Compilation error (line 29, col 59): Argument 1: cannot convert from 'System.Collections.Generic.List<Rextester.Plane>' to 'System.Collections.Generic.List<Rextester.Vehicle>'

How should I pass derived class to method which uses parent class to make that work correctly?

namespace Rextester
{
 abstract class Vehicle{
    public int Speed; 
    }

     class Car: Vehicle{
     public String VIN;   
    }

     class Plane : Vehicle{
     public int altitude;   
    }

public class Program
{


    public static void Main(string[] args)
    {

        var cars= new List<Car>();
        var planes = new List<Plane>();
        List<Vehicle> movingCars= getMovingVehicles(cars);
        List<Vehicle> movingPlanes=getMovingVehicles(planes);

    }

     static List<Vehicle> getMovingVehicles(List<Vehicle> vehicles){
        List<Vehicle> movingVehicles=new List<Vehicle>();
        foreach( Vehicle v in vehicles){
        if(v.Speed>0)
             movingVehicles.Add(v);

        }

        return movingVehicles;
    }

}
}

Answer 1

Another option is to use a generic

      static List<Vehicle> getMovingVehicles<T>(List<T> vehicles) where T:Vehicle {
            List<Vehicle> movingVehicles=new List<Vehicle>();
            foreach( Vehicle v in vehicles){
            if(v.Speed>0)
                 movingVehicles.Add(v);

            }

        return movingVehicles;
    }