High Quality Content by WIKIPEDIA articles! The 1989 Japanese Grand Prix was a Formula One motor race held at Suzuka Circuit, Japan, on October 22, 1989. It formed the 15th and penultimate round of the 1989 Formula One World Championship. This race would become one of the most notorious in F1 history, as the culmination of Alain Prost and Ayrton Senna`s tumultuous two year rivalry as team mates at McLaren. The Japanese Grand Prix decided the 1989 Drivers` Championship in Prost`s favour, after a collision at the final chicane between him and Senna put them both off the track. While Prost abandoned his stalled car, Senna restarted his, made a pit stop to change his front wing, and overhauled Alessandro Nannini to take victory. Following the race Senna was controversially disqualified for using the chicane`s escape road to rejoin the circuit, handing the title to Prost.