Sebastian Vettel on Late Night with David Letterman (+Video)

Two-time defending Formula One World Champion Sebastian Vettel appeared on CBS' The Late Show with David Letterman Monday night [11 June] as part of an F1 media blitz.Letterman, the Indianapolis-born motor racing fan and Indycar team co-owner, began talking to the 24-year-old German and his ‘Late Show’ audience about F1′s drag-reduction system. “Complicated stuff,” Vettel smirked as he explained