The Autódromo do Estoril is a 2.709-mile race course in Portugal, and the home of the Formula One Portuguese Grand Prix from 1984 to 1996.

Estoril was built in 1972 on a rocky plateau not far from Estoril, Portugal, the beach resort lending its name to the circuit. The course has two hairpin turns, noticeable elevation changes, and a long start/finish straight. Its first years saw many club races, as well as an occasional Formula 2 race. However, the course soon fell into disrepair, and a significant redevelopment effort was needed before international motorsport returned in 1984.

Through the years, Estoril has had numerous problems with safety, failing safety inspections on more than one occasion. Estoril sometimes has high crosswinds, which remind many of its Spanish counterpart, the Circuit de Catalunya. Many teams were fond of using Estoril for winter testing.

Formula One history