Formula One World Championship: Pole sitter Nelson Piquet (BRA) Brabham BT53 leads eventual race winner Alain Prost (FRA) McLaren MP4/2, Ayrton Senna (BRA) Toleman TG184 and Keke Rosberg (FIN) Williams FW09B. Portuguese Grand Prix, Rd16, Estoril, Portugal, 21 October 1984.
Pole sitter Nelson Piquet (BRA) Brabham BT53 leads eventual race winner Alain Prost (FRA) McLaren MP4/2, Ayrton Senna (BRA) Toleman TG184 and Keke Rosberg (FIN) Williams FW09B.
Portuguese Grand Prix, Rd16, Estoril, Portugal, 21 October 1984.