Circuito do Estoril
motorsport track in Portugal

The Circuito do Estoril or Autódromo do Estoril (Estoril Circuit), officially known as Autódromo Fernanda Pires da Silva, is a motorsport race track on the Portuguese Riviera, outside of Lisbon, owned by state-run holding management company Parpública. Its length is 4.182 km (2.599 mi). It was the home of the Formula One Portuguese Grand Prix from 1984 to 1996.
History
Estoril, a vacation-destination beach town located 32 km (20 mi) west of the Portuguese capital city of Lisbon has had motor racing dating back to the 1930s, with a 2.8 km (1.7 mi) street circuit used in 1937 for a local race. The current Estoril circuit was built and completed in 1972 on a rocky plateau near the village of Alcabideche, 9 km (5.6 mi) from Estoril, the town lending its name to the circuit. The course has two hairpin turns, noticeable elevation changes, and a long 0.986 km (0.613 mi) start/finish straight. Its original perimeter was 4.349 km (2.702 mi), and the maximum gradient is nearly 7%. Monsanto Park, another street circuit in Lisbon hosted a variety of motor racing events in the 1950s, including the 1959 Portuguese Grand Prix, an event it shared briefly with the Boavista street circuit in Porto.
Its first years saw many national races, as well as an occasional Formula 2 race. However, the course soon fell into disrepair due to the owning company having been taken over by the state between 1975 and 1978, and a significant redevelopment effort was needed before international motorsport returned in 1984.
The public source identifies “Circuito do Estoril” as motorsport track in Portugal. This brief keeps that definition visible, then builds a research path around Circuito, Estoril and motorsport.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q172890. VIAF identifies the subject as 156506280. Authority coordinates are 38.751, -9.394. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1984, 1996, 1937 and 1972.
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This entry incorporates text from “Circuito do Estoril” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.