Audi has revealed its AI:Trail concept car ? an all-wheel drive with drones for headlights and other features to enhance the passengers' enjoyment of the outdoors.
The concept vehicle, displayed at last week's Frankfurt Motor Show, showcases what Audi sees as the future of off-road driving.
The partly autonomous, fully electric car's most unusual feature is the five drones it sports instead of conventional headlights.

Called Audi Light Pathfinders, the drones fly autonomously above and around the car to illuminate not just the path ahead but the area on either side.
They dock to the roof or roof rack, and double as cameras to beam video back to the driver if they want to see what's ahead.
The bladeless drones can also assume other configurations ?Audi suggests having them group together into a spotlight that escorts the driver safely from the vehicle.
Another of the AI:Trail's headline features is the rear passenger seats, which Audi likens to hammocks.
Made from panels of fabric tensioned across a tubular steel frame, these suspended chairs are designed to be removable, so people can use them for outdoor seating.

"This way, Audi accompanies the driver on his entire trip, whether in the car or on the hiking trail," explained design project manager Oliver Keyerleber.
He said features like this are meant to create "an emotional connection" to the car and to the brand.
"On a quiet path out in nature, the driver finds himself," Keyerleber added...