Race report
Limited fuel allowances played a big part in the race, as a succession of drivers ran out of fuel in the last few laps. Prost took the chequered flag before stopping on the slowing-down lap and hitching a ride with Patrick Tambay on the side pod to return to the pits. Later, Prost's car was found to be 2 kg (4.4 lb) below the minimum permitted weight in post-race scrutineering, resulting in his disqualification. Summing up the general feeling that FISA's fuel limit rules had seen Formula One races reduced to mere economy runs, Williams driver Nigel Mansell noted that "it wasn't really racing".
Following this, until the end of the turbo era at the end of 1988, McLaren drivers would routinely pull up just beyond the finish line after a race so as to leave as much fuel in the tank as possible and avoid being underweight. It would actually become a common sight during this time to see all finishing cars pulling up just beyond the line in order to beat the weight limit.
Stefan Johansson ran a good race in his second drive for Ferrari. After starting 15th he steadily made his way through the field and by late in the race had moved to second (benefiting from others running out of fuel) and was poised to benefit from Senna also running dry 3 laps from home. Johansson took the lead from the Lotus to a thunderous applause from the Tifosi, only to run out of fuel himself half a lap later coming out of the Acque Minerali chicane. A post race examination of his car revealed the Ferrari had an electrical malfunction and a tiny, barely visible crack in the turbo pipe that caused the engine to use more fuel than the readout was telling the team or Johansson. The Ferrari's readout had told Johansson that he still had enough fuel to finish the race.
Prost's disqualification promoted de Angelis to the win, his second and last in F1, even though at no point did he ever actually lead the race. Second place was thus awarded to Boutsen — who ran out of fuel as he reached the start-finish straight on his final lap and pushed his Arrows-BMW across the finish line to secure his finishing position (unlike Prost's McLaren, the Arrows was still over the weight limit), with third going to Frenchman Patrick Tambay who had won the race for Ferrari in 1983, his 2nd of two F1GP race wins. This would turn out to be the last podium finish for both Tambay and the original factory Renault team.
Mauro Baldi and Spirit Racing entered their last Grand Prix: the small British team were having financial troubles and the Toleman team, via their new major sponsor, Italian fashion house Benetton, offered to buy the Spirit team. The offer was accepted and the Benetton Group immediately transferred Spirit's existing Pirelli tyre contract to Toleman, allowing them to race from the next round in Monaco.
Michele Alboreto 
