Streetlife looks at the world from behind dark glasses; his office, a table on a pavement. ‘Do you know,’ he asks anyone listening, ‘ there are 4000 drivers of new Olympic BMWs in London only one of whom has a PCO’. A ‘PCO’ is given to a chauffeur, licensed by the Public Carriage Office, who has some knowledge of London, a clean criminal record, and is deemed medically fit to drive…