Revealing pattern usecase

I'm reading a book called "Learning javascript design patterns" by Addy Osmani. This book is great.

There's an example of using the revealing design pattern:

var myRevealingModule = (function () {

    var privateVar = "Ben Cherry",
        publicVar = "Hey there!";

    function privateFunction() {
        console.log( "Name:" + privateVar );
    }

    function publicSetName( strName ) {
        privateVar = strName;
    }

    function publicGetName() {
        privateFunction();
    }


    // Reveal public pointers to
    // private functions and properties

    return {
        setName: publicSetName,
        greeting: publicVar,
        getName: publicGetName
    };

})();

myRevealingModule.setName( "Paul Kinlan" );

Now, of course I understand how it works, but my question simpler- what is the use case for using this in a regular, classic node webapp?

let's say I have a car module, that I wish to create in some procedure I have. I can't see how can I use the pattern in this case. How can I pass arguments to make new Car(args)?

Should I use this pattern for singletons? to create factories?