AN electric roadster designed to bring sports cars into the high tech era has been developed by Swedish all-electric brand Polestar as a concept car.

The Polestar O2 is a hard-top convertible that is the brand's vision of open-top performance and offers driving experience that can be captured on video from a drone.

"Polestar O2 is the hero car for our brand," said Thomas Ingenlath, Polestar chief executive. "It opens the door to our secret chamber of future potential.

"This is a taste of what we can design and engineer with the talent and technology we have in-house. It looks incredible, and being able to lower the roof and not hear an engine promises a superb sensation."

The company says tight body control, high rigidity and intuitive dynamics are inherent benefits of the bespoke bonded aluminium platform which is adapted from the Polestar 5, developed in-house by Polestar's research and development team in the UK.

The Polestar O2features an autonomous cinematic drone integrated behind the rear seats which has been developed in collaboration with Aerofugia's consumer electronics brand Hoco Flow.

The drone can be deployed while the car is moving at speeds up to 55mph to record driving sequences.

Polestar engineers have developed a specialised aerofoil that raises behind the rear seats to create a calm area of negative pressure that allows the drone to take off when the car is on the move.

The the driver can choose between an atmospheric sequence - for a coastline cruise for exapmle - or a more action-filled sequence with a sportier expression.

After filming, the drone can autonomously return to the car. Video clips can be edited and shared directly from the 15-inch centre display when the car is parked.

Polestar plans to launch three new cars over the coming three years, starting in 2022, each of which it says has potential to realise some of the ideas presented by the concept car.