09:50Sporting WitnessAyrton Senna and Alain Prost: Formula One's Greatest RivalryBBC World Service Duration: 9 minutes Tue 24th Oct 2017, 09:50 on BBC World ServiceAvailable for over a yearListen nowHow the feud between two motor-racing giants spilled onto the track in 1989. Show more GenresSportFormatsDocumentariesBrandSporting Witness Source: BBC Online