Air travellers are to be hit with yet another expense, as a major airport begins charging them to use luggage trolleys. From next month it will cost £1 if you want a trolley to ferry luggage ...

And because KLM wanted to make sure the Care-E is a safe trolley, there are a total of 8 Ultrasonic Rangefinder (five on the front and three on the back) for peripheral collision avoidance.