The long, white beard cascading out from David Letterman's mask as he climbed onto the new-look winner's podium at Indianapolis Motor Speedway was evidence of just how long it's been since the longtime “Late Show" host joined team co-owner Bobby Rahal in celebrating an Indy 500 victory.Sixteen years between Buddy Rice's improbable win and Takuma Sato's celebration on Sunday.While the Honda-powered cars of Andretti Autosport had been the talk of the paddock leading up to “The Greatest Spectacle in Racing,” which was postponed from its typical Memorial Day weekend date because of the coronavirus, it was the Hondas behind Rahal Letterman Lanigan Racing that managed to dash Scott Dixon's hopes of a second Indy 500 win.“To even be here, to be in.