 The two Theodore drivers proved evenly matched in sixth and seventh, with Henton outpacing regular driver Roberto Guerrero.Mansell qualified eighth with his first taste of a turbo engine in competitive conditions; he was followed by Raul Boesel in the Ligier, Rebaque's Brabham and Chico Serra in the other Arrows.Johansson set the second-fastest time in un-timed practice with a time that would have actually placed him 3rd on the grid, but suffered reliability problems in qualifying proper, restricting him to a single lap and 12th place on the grid in a difficult début for the Spirit team, but he still lined up ahead of Jean-Louis Schlesser, who failed to record a lap time for RAM March.