The new regulations introduced during the Monaco weekend to modify amongst other things the airboxes of the cars were now in effect and were visibly shown as teams had to cut holes in the engine covers. Another temporary chicane was installed prior to the flat-out left-right kink leading to the start-finish straight to slow the cars down. Benetton introduced a revised rear wing assembly and Ferrari had new side pods for their cars. Andrea de Cesaris was back in action, now with Sauber, and celebrated his 200th Grand Prix start.