Tony, a tough little Cockney from London's East End, wanted to be a jockey and didn't make it, but he managed to pass The Knowledge, the formidably difficult test for London taxi drivers, then buy his own taxi and earn a good living for himself and his family.

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In December, the Taxi and Limousine Commission OK'd a yearlong test.

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CSA. To test out this hunch, she had started driving a taxi at weekends.

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The taxi bounced from pothole to pothole, its suspension undergoing a robust test.

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That might be because Mexican hauliers, along with taxi-drivers and other professionals, have to sit a driving test.

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