With the 2013 Formula one kickoff coming up tomorrow night, we're revisiting Marshall Pruett's October 2012 tech explainer on the underside of today's F1 cars. - Ed. The machine you see here is ...

Because the bottom of an F1 car is almost never seen, we asked Wirth to parse it out. "A Formula 1 car produces much of its downforce from [its underside]," he says. "Think of each component as a ...