High Quality Content by WIKIPEDIA articles! The 1984 IndyCar season, the sixth in the CART era of U.S. open-wheel racing, consisted of 16 races, beginning in Long Beach, California on March 31 and concluding in Las Vegas, Nevada on November 10. The PPG Indy Car World Series Drivers` Champion was Mario Andretti and the Indianapolis 500 winner was Rick Mears. Rookie of the Year was Roberto Guerrero. The 68th Indianapolis 500 was sanctioned by the USAC, but counted in the CART points standings.