Vallelunga Circuit

Vallelunga was originally built in 1951 as a 1.773 km sand oval. The circuit came to prominence from 1963 when it began hosting the Rome Grand Prix, an event that ran under various championship banners over subsequent decades. In 1967, following the transfer of circuit ownership to the ACI, a new loop was added that significantly extended the layout and elevated its international standing. Further refurbishment took place in 1971.

In August 2004, an 0.863 km extension was added to the track, bringing it to its current configuration. This extended layout received FIA homologation as a test circuit, and has since been used by Formula One teams for private testing. Notable Formula One test records include an unofficial benchmark of 1:12.804 set by Anthony Davidson in a Honda RA106 in April 2006.

Vallelunga developed a rich multi-category history across its decades of operation. The Rome Grand Prix for Formula One-specification cars ran from 1967 to 1984 under the European Formula Two Championship banner and later the International Formula 3000 series, with the F3000 version continuing through 1991. The Italian Formula Three Championship was a mainstay at the circuit from the 1970s through to 2012.

The circuit hosted rounds of the World Sportscar Championship on multiple occasions between 1973 and 1980, and the European Touring Car Championship visited regularly from 1974 through to 2000. The Superbike World Championship and Supersport World Championship each held rounds at Vallelunga in 2007 and 2008.

The circuit has also staged Lamborghini Super Trofeo World Finals, FIA Motorsport Games, FIA ETCR events, and TCR World Tour rounds, maintaining its relevance across successive generations of international touring car and GT racing.

The 6 Hours of Rome endurance race ran at Vallelunga from 1973, resumed in 1976, and continued in various forms through 2020, giving the circuit an enduring connection to long-distance sports car racing.

In its current form the Vallelunga circuit is used heavily for national Italian championships including the Italian GT Championship, Italian F4 Championship, TCR Italian Series, and CIV Superbike Championship. The circuit is also a primary venue for ACI's public driving safety training courses and in autumn each year hosts a large flea market specialising in vintage automotive spare parts.

The presence of Kunos Simulazioni on site gives Vallelunga an unusual distinction: the real circuit and the virtual reproduction of it were developed in close proximity, with the simulation company able to measure and study the track at close hand.

Vallelunga's longevity reflects its strategic position as Rome's motorsport gateway and the ACI's primary operational venue in central Italy. Its combination of a technically challenging layout, FIA test-grade homologation, and historical depth across categories from Formula Two to endurance racing make it one of the most functionally important circuits in Italian motorsport, even as it has rarely achieved the international fame of Monza, Mugello, or Imola.