http://www.bbc.co.uk/programmes/p009y2z0   Here is a rare sound clip that I stumbled across Apparently it is the only existing recording of Briggo on Desert Island Discs. Only about 5 min of it and not the best part but an interesting reminder of the days when Speedway stars were sufficiently well known to be interviewed on the BBC.   It was apparently recorded at a time when he was World Champion but as he is referring to starting ice racing I would guess it must be 1964 or 66 rather than the previous years he was champion.   Enjoy.