When Emerson Fittipaldi crossed the finish line to win the 1989 Indianapolis 500, racing fans witnessed history being made. Fans thrilled to the neck-and-neck finish between Fittipaldi and Al Unser, Jr. who went spinning on lap 198 after brushing tires with Emmo, and the 43-year-old Brazilian had his first Indianapolis 500 win. Fittipaldi's victory—in a Chevrolet Indy V8 engine controlled by a Delco Electronics electronic engine control module (ECM) – was the first time in the 500's storied history that the engine of the winning vehicle was controlled by an electronic engine management system.