third on lap 6, as Villeneuve retired with an engine failure. On lap 12, Laffite dropped out with a puncture, by which point Pironi had dropped back behind Reutemann and Jones. As rain started to fall, Jones passed teammate Reutemann for third. At the end of the lap, Eddie Cheever spun his Tyrrell out at the Parabolica; on the next lap, Arnoux himself spun out after swerving to avoid Cheever's abandoned car, leaving Prost comfortably clear of Jones. Reutemann, struggling as the track started to dry again, soon fell to eighth behind Giacomelli, Patrick Tambay in the second Ligier (who had only started 15th), Piquet, Pironi and Watson. On lap 20, Watson lost control exiting the second Lesmo bend and smashed into the barriers at high speed. The McLaren was torn in two, with the gearbox and rear wheels going across the track and clipping the second Tyrrell of Michele Alboreto, who also retired. Watson escaped unharmed. On lap 23 Tambay, like teammate Laffite, retired with a puncture, before Giacomelli pulled into the pits with a jammed gearbox on lap 26. Piquet was thus promoted to third with Pironi fourth and Reutemann fifth, followed by Mario Andretti in the second Alfa Romeo, Elio de Angelis in the Lotus and Andrea de Cesaris in the second McLaren. Reutemann soon passed Pironi again, before Andretti suffered an engine failure on lap 41. As Prost cruised to victory, ultimately finishing some 22 seconds ahead of Jones, Piquet looked set to hold off championship rival Reutemann for third, until his engine blew on the last lap. Reutemann duly went past, as did de Angelis and Pironi. Piquet was classified sixth ahead of de Cesaris, who himself suffered a puncture on the last lap. The only other finishers were Giacomelli, Jean-Pierre Jarier in the second Osella, and Henton. Reutemann thus led the Drivers' Championship by three points from Piquet with two races remaining, with Prost, Jones and Laffite all retaining outside chances of the title. The Williams team, meanwhile, needed just two more points to secure their second consecutive Constructors' Championship. Race classification Championship standings after the race Drivers' Championship standings Constructors' Championship standings References Italian Grand Prix Italian Grand Prix Grand Prix Italian Grand Prix