It was a day memorable only for the brilliance of Prost. As a race, the 1986 Monaco Grand Prix was a dead loss, the usual procession through the streets, with no one able to offer any challenge to the world champion - who was equally impressive in taking pole position. Rosberg, Senna, Mansell, Arnoux and Laffite were in a strong, hard, race. But it was not the same one as Prost's. Two wins in a fortnight for McLaren-TAG.
The only battle of note was a lengthy affair featuring Piquet, Brundle, and Tambay, which ended horrifically when Patrick's Lola somersaulted over Martin's Tyrrell. Both survived without serious hurt - and so, therefore, did the Monaco Grand Prix, anachronism of Formula 1.