Alain Prost hand signed full-size 1:1 helmet visor, 1989 McLaren Honda. Four time Formula 1 World Champion, Alain Prost won three titles with McLaren, two powered by Honda. After winning several races in his 1987 campaign, Prost was partnered by Ayrton Senna. Together, they won all Grands Prix bar one in 1988—driving the Honda-powered MP4/4—with Senna taking the title by three points. Their fierce rivalry culminated in title-deciding collisions at Suzuka in 1989 and 1990. Alain Prost semi-tint visor, McLaren Honda, hand signed with COA.