Grand Prix of Portugal 1990 Published 3. July 2018 Circuit Estoril Date 23.09.1990 Laps 61 Distance 265,350 km /164,883 miles No Driver Ferrari S/N Team Result 1 Alain Prost 641/2 121 Scuderia Ferrari 3. 2 Nigel Mansell 641/2 120 Scuderia Ferrari 1.