Despite being voted the world's favourite taxis, passengers in London said their biggest frustration with taking a cab in the city is drivers taking a longer route to get a higher fare.
Value for money was one of only two categories London didn't come top in, the other being availability. Bangkok's famous tuk-tuks won out on cheapness - though their drivers were voted the worst overall.
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John, who began running for Age UK back in the 1980s when he was aged 53, has raised an incredible amount since then - more than £40,000.
It was Tom's second marathon in two weeks run in memory of his father, Martin Campbell.
Surrey Police are appealing for witnesses after the driver was seriously injured in the crash in the early hours of Saturday.