Team principal Toto Wolff suggested ahead of the Spanish Grand Prix that he would expect Hamilton to be interested in making a switch to rivals Ferrari at the end of next year.
Hamilton, who sent shockwaves through the grid by swapping McLaren for Mercedes ahead of the 2013 season, was less certain after beating team-mate Valtteri Bottas on Sunday, stating he did not remember the conversation but acknowledging his Ferrari fandom.
Senna, who had received Prost’s blessing, won three titles in in his first four years with the team in what proved to be a hugely successful McLaren career.
They won a championship each, before the competitive nature of the two appeared to become too much and Prost agreed a move to Ferrari.
Schumacher had won back-to-back titles with Benetton and Ferrari were without a drivers’ championship since 1979 when the German signed for the Scuderia from 1996.