这是正确的工厂方法模式吗?

我知道有很多类似的问题，但是我不理解这些问题中的大多数，因为我不确定我是否知道工厂方法模式是什么。

. .在网上阅读了许多例子后，我想出了下面这些简单的类。

我做对了吗?

abstract class Driveable
{
    abstract public function start();
    abstract public function stop();
}
class CoupeDriveable extends Driveable
{
    public function start()
    {
    }
    public function stop()
    {
    }
}
class MotorcycleDriveable extends Driveable
{
    public function start()
    {
    }
    public function stop()
    {
    }   
}
class SedanDriveable extends Driveable
{
    public function start()
    {
    }
    public function stop()
    {
    }   
}
class DriveableFactory
{
    static public function create($numberOfPeople){
        if( $numberOfPeople == 1 )
        {
            return new MotorcycleDriveable;
        }       
        elseif( $numberOfPeople == 2 )
        {
            return new CoupleDriveable;
        }
        elseif( $numberOfPeople >= 3 && $numberOfPeople < 4)
        {
            return SedanDriveable;
        }
    }
}

class App
{
    static public function getDriveableMachine($numberOfPeople)
    {
        return DriveableFactory::create($numberOfPeople);
    }
}

$DriveableMachine = App::getDriveableMachine(2);
$DriveableMachine->start();