An explanation from Graham Rahal on why we saw less overtaking in this year's IndyCar race at St. Petersburg: "We gotta get the underway back on. I don’t understand the mentality. It’s common sense in traffic that the wings are not effective. The undertray is only way to create downforce. When we take those off, we lack the downforce. I’d rather they limit the wing angles, and give you the undertray back."