Corte Madera, Calif. -- Historic Grand Prix makes its third appearance at the Indianapolis Motor Speedway during the Formula One weekend of Sept. 27-29. Twenty-five participants are scheduled for the event, bringing cars ranging from a 1968 Ferrari 67 originally driven by Chris Amon to Michele Alboreto's 1983 Tyrrell 012. Historic Grand Prix will to the track 4:10 Friday the 27th and 4:30 Saturday the 28th for two high-speed demonstrations.

The group consists of owner-drivers of authentic vintage Formula One cars from the FIA three-litre formula that was in effect from 1966 to 1983 (pre-turbo charged). Rules insist on historically accurate presentation and on-track performance of the cars, with stringent guidelines for driving behavior. Historic Grand Prix runs at tracks such as Laguna Seca, Watkins Glen, Mont Tremblant and Road America. The Indy stop will be HGP's last event of the season.

Since the USGP moved to Indianapolis in 2000, Historic Grand Prix has been a popular addition. According to Phil Reilly, Rebecca Hale, James King, co-founders and directors, HGP's allure is enhanced by the accessibility to the cars and information provided at paddock displays. Educational signboards detail each car's history and specifications, and questions from fans are happily entertained. For more information on Historic Grand Prix, visit their web site at