Formula One and CART/Champ Car World Series driver who achieved much more success in the latter with two victories and 2 poles in 120 starts. He only secured one podium finish in 75 Formula One Grand Prix races.
He made his CART debut in 1980 racing in the British Formula Ford 1600 series where he won a championship title. He later debuted in Formula One in 1982 for the Dutch Grand Prix.
He became a substitute driver late in his career, replacing injured drivers majority of the time.
He was born in Rio de Janiero, Brazil.
He shares a last name with NFL running back Knowshon Moreno.
