Taxi hailing service Uber has announced it is to partner with car-maker Hyundai to mass produce air taxis.
Hyundai will produce and deploy the air vehicles, and Uber will provide airspace support services, connections to ground transportation and customer interface.
Both parties are collaborating on infrastructure concepts to support take-off and landing for the vehicles.
Jaiwon Shin, of Hyundai's urban air mobility division, said: "Our vision of Urban Air Mobility will transform the concept of urban transportation.
"We expect UAM to vitalize urban communities and provide more quality time to people.
"We are confident that Uber Elevate is the right partner to make this innovative product readily available to as many customers as possible."
Eric Allison, head of Uber Elevate, added: "Hyundai is our first vehicle partner with experience of manufacturing passenger cars on a global scale.
"We believe Hyundai has the potential to build Uber Air vehicles at rates unseen in the current aerospace industry, producing high quality, reliable aircraft at high volumes to drive down passenger costs per trip.
"Combining Hyundai's manufacturing muscle with Uber’s technology platform represents a giant leap forward for launching a vibrant air taxi network in the coming years."
The cars will have a cruising speed up to 290 km/hr, an altitude of around 1,000-2,000 feet above ground, and will be able to fly trips up to 100km.
The Personal Air Vehicle - named 'S-A1' - will be 100% electric, and during peak hours will require about five to seven minutes for re-charging.
A number of cities have been selected to run the service: Melbourne in Australia, along with Dallas and Los Angeles in the US.
The company hopes to begin demonstrator flights in 2020 and commercial operations in 2023.