 Here, Senna collided with Prost at the first corner, forcing both to retire, but this time Senna escaped punishment and took the title; McLaren also won the Constructors' Championship.The year was another for McLaren and Senna, with the ascendent Renault-powered Williams team their closest challengers.By , Williams, with their advanced FW14B car, had overtaken McLaren, breaking their four-year run as champions, despite the latter winning five races that year.