A new fleet of 24 tuk-tuks went into operation on Paris streets at the end of December. It runs seven days a week and picks up passengers from 150 points on the most popular bus routes.

The small, motorbike powered vehicles are common in Asian cities but only arrived in Paris a few years ago. There are at least six companies now offering rides, as well as an increasing number of self-employed and often unlicensed drivers.

A journey can cost between