[youtube]http://www.youtube.com/watch?v=JrjlwKtk5PU[/youtube]
Being able to spectate any race on the iRacing service is a valuable tool for learning how to be a sim racer. Also, you can ghost race – be on track and drive against other racers, allowing you to see where others are braking, turning in and accelerating. It is great practice and does not effect your iRating or Safety Rating.