Start your Sparrow engines, and get ready for some entirely fresh content. At the PlayStation Experience fan event held on Saturday, Destiny developer Bungie revealed the Sparrow Racing League, a three-week event that will take place on an easy virtual course on Mars and a more difficult course on Venus. Special racing suits and unique vehicle designs will be integral parts of the event, with new items added for microtransaction purchases. If the event is successful—and, given the popularity of …