Prost discovered karting at the age of 14 during a family holiday. He progressed through motor sport's junior ranks, winning the French and European Formula Three championships, before joining the McLaren Formula One team in 1980 at the age of 24. He finished in the points on his Formula One début – at the San Martin Autodrome in Buenos Aires, Argentina, where he took his first podium a year later – and took his first race victory a year later at his home Grand Prix in France, driving for the factory Renault team.