'You can never tell what type of person is getting into your car' says Iris Javed who has been driving a taxi in New York City for over twenty-two years, 'and once they're in your car you have to deal with it'. Iris, who drove an 18-wheel truck before scaling down to a taxi, has had her fair share of drunk and troublesome passengers - and even one who got into her car completely naked.

Karin Holmström has been driving a taxi in Stockholm for twenty years. She says driving is only a tiny part of the job - 'you more or less have to be a mother, a priest and a psychologist'. She's doled out relationship advice and consoled the lonely and although she welcomes all kinds of passengers, Karin has one hard and fast rule about fast food - 'they will never eat hamburgers and hotdogs in my car. I'm not a restaurant!'

(Picture: Iris Javed (Left) and Karin Holmström (Right - Credit: Stockholm Taxis)