The EuroBrun-Ford Cosworth of Oscar Larrauri, the Ligier-Judds of Stefan Johansson and former Imola pole winner René Arnoux, and the Zakspeed turbo of Bernd Schneider all failed to qualify, while the Osella of Italian Nicola Larini was excluded after scrutineering when it was discovered that the car's engine mounting points had been illegally changed. The scrutineers ruled that this constituted an entirely new chassis for the Osella FA1L and as the new chassis had not yet been crash approved by FISA, the team was excluded from the meeting. For Ligier it was the first time since the team's début in Formula One in that neither car had qualified for a race. For Arnoux it was a bitter pill to swallow as he had sat on the pole at the circuit three times previously when he had driven for both Renault (1980 and 1982) and Ferrari (1983). Johansson, driving for Ferrari (1985 and 1986) and McLaren the previous year, had finished each race in the points.