The works Alfa team was prevented from racing in this national Grand Prix on Mussolini's orders.
Mussolini ordered Italian cars and drivers to boycott French races. Alfas were entered by Raymond Sommer and Christian Kautz instead.
The British teams (mainly Lotus, Cooper and BRM) boycotted this race due to safety concerns about the circuit.
The British teams objected to the use of the bumpy Monza banking.
Arguements rage over non-paid driver fines. Ferrari, Alfa Romeo and Renault withdraw from FOCA organised event. Race loses championship status.
First major battle of the FISA/FOCA war.
Late attempts to change this race's date cause problems. Loses championship status and non British teams do not attend. Sliding skirts are allowed despite being banned.
Part of the FISA/FOCA war. Since sliding skirts were allowed this is technically a Formula Libre race not an F1 race.
Only 14 cars start after other teams withraw to protest the FISA ban on topping up water cooled brake tanks post race.
Part of the FISA/FOCA war and also scene of the Villeneuve/Pironi fued. The FOCA teams were using water cooled brakes as a way to 'legally' run underweight.
Zakspeed, Renault and Ligier boycott this race due to the host nations political regime.
The two French teams were pressured into withdrawing due to the French goverments sanctions against apartheid. Other goverment sanctions almost prevented several other drivers from competing.
Andrea Moda are forced to withdraw when a truckers strike and road blockades in the host nation prevent them getting to the circuit.
All the other teams managed to get to the circuit on time...Andrea Moda's non-apperence is no real loss to the event.
Sauber withdraw after qualifying due to several wing failures.
The same qualifying session also saw an advertising hoarding above the track fall off and nearly hit Jean Alesi.
Only six cars start after the other teams withdraw due to tyre safety concerns.
All Michelin teams forced to withdraw after several tyre failures in the final banked corner.
Renault were orignally banned from this race due events of the previous years Singapore Grand Prix. The ban was overturned on appeal and Renault did compete.
This was due to the events of 'crashgate' in which Renault ordered Piquet to deliberatly crash and bring out the safety car. The timing of this benefitted Alonso who won the race after a poor qualifying.