The two-day Freedom 250 Grand Prix race still is about a month away — but you may start noticing impacts of the race soon. "It will be best to leave all of the downtown driving on the race course," D.C. Mayor Muriel Bowser said Wednesday. Those attending the Grand Prix can get to it via the following Metro stations: L’Enfant Plaza, Smithsonian, Federal Center SW, Archives, Federal Triangle, Metro Center, Gallery Place and Judiciary Square. Delays at DC-area airports possible due to flyovers during Grand Prix weekend in DCOne more group impacted will be air travelers due to flyovers expected that weekend. As for Bowser, she hopes the Grand Prix will become an annual event.