This electric Finnish taxi only accepts payment in singing

A Finnish rock festival has launched the world’s first taxi that runs on singing—as long as you keep belting out tunes, your shuttle keeps moving.
The Turku, Finland-based Ruisrock festival’s brightly coloured “Singalong Shuttle,” a BMW i3 compact, isn’t actually powered by singing, of course.
It’s an electric vehicle that will take singing as its only form of acceptable payment. The driver will turn down your credit card or cash, but asks you to carry a