He was then hired by the Marmon Motor Car Company as chief engineer, charged with building a racecar intended to race at the very first Indianapolis 500, which he went on to win.
Logo foi contratado pola Marmon Motor Car Company como enxeñeiro-xefe, encargado de construír un coche de carreiras destinado carrer nas primeiras 500 Millas de Indianápolis, que gañou.