New loop qui remplace query_posts

I always used the query_posts for loop, now i will change it to this new loop.

// WP_Query arguments
$args = array(
	'post_type'              => array( 'park_auto' ),
	'post_status'            => array( 'Publish' ),
	'posts_per_page'         => '6',
	'order'                  => 'DESC',
	'orderby'                => 'rand',
);

// The Query
$query = new WP_Query( $args );

// The Loop
if ( $query->have_posts() ) {
	while ( $query->have_posts() ) {
		$query->the_post();
		// do something
	}
} else {
	// no posts found
}

// Restore original Post Data
wp_reset_postdata();