Early history " race held in 1925|left The first track was built from May to July 1922 by 3,500 workers, financed by the Milan Automobile Club In 1928, the most serious Italian racing accident to date For these reasons the Italian Grand Prix was not held again until 1931; in the meantime the 1930
Monza Grand Prix was held on the high speed ring only, while in 1930
Vincenzo Florio introduced the Florio Circuit. The
1933 Italian Grand Prix was held on the original complete layout but it was marred by the deaths of three drivers (
Giuseppe Campari,
Baconin Borzacchini and
Stanisław Czaykowski) in the supporting Monza Grand Prix held on the same day—which became known as the "Black Day of Monza"—over the shorter oval circuit and the Grand Prix layout was changed: in 1934 a short circuit with two lanes of the straight line joined by a hairpin,
Curva Sud of the banking (with a double chicane) driven in the opposite direction than usual, the "Florio link" and the
Curva Sud (with a small chicane). This configuration was considered too slow and in 1935 Florio Circuit was used again, this time with four temporary chicanes and another one permanent (along the
Curva Sud of the banking). In 1938 only the last one was used. There was major rebuilding in 1938–39, constructing new stands and entrances, resurfacing the track, removing the high speed ring and adding two new bends on the southern part of the circuit. The outbreak of World War II meant racing at the track was suspended until 1948 The two circuits could be combined to re-create the former with three 63 lap heat races each year, races which colloquially became known as the
Monzanapolis series. Concerns were raised among the European drivers that flat-out racing on the banking would be too dangerous, The American teams had brought special
Firestone tyres with them, reinforced to withstand high-speed running on the bumpy Monza surface, but the Maseratis' steering was badly affected by the larger-than-usual tyre size, leading to the
Modena-based team withdrawal. and the last by
Troy Ruttman in the
Watson-
Offenhauser John Zink Special. In 1958
Jaguar,
Ferrari and Maserati teams appeared alongside the Indy roadsters, but once again the American cars dominated the event and
Jim Rathmann won the three races in a
Watson-
Offenhauser car. Although the accident did not occur on the oval section of the track, the high speeds were deemed unsafe and F1 use of the oval was ended. Another attempt was made to use the combined circuit for the 1963 race, but the extremely bumpy nature and poor overall quality of the concrete banking saw some cars suffer mechanically. The teams protested and threatened to leave unless only the road circuit was used, which is ultimately what happened. Future Grands Prix were held on the shorter road circuit,
Circuit changes and modernisation and
Jarno Saarinen died Both car and
Grand Prix motorcycle racing were regular attractions at Monza. and the Variante
Ascari. The infrastructure was also improved, with pits able to accommodate 46 cars, and an upgraded paddock and scrutineering facilities. and camp site were either rebuilt or improved. However, plans for the track's change were suspended due to the track being in the historic
Monza Park. Ahead of the
2024 Italian Grand Prix, the Monza Circuit underwent significant changes. This forced
WEC to abandon the
6 Hours of Monza, moving it to the
Imola Circuit. In addition to facility improvements, changes included a resurfacing of the entire track. ==A lap of the circuit in a Formula One car==