THE fourth model in the all-electric Polestar line up has been revealed with the Polestar 4 performance SUV coupe having its premiere at the Shanghai auto show.

At almost five metres long the car sits between the Polestar 2 and 3 models and will be priced from around £55,000 when it arrives in the UK next year.

With a predicted range of around 350 to 370 miles depending on specification, the car is the fastest production model the Swedish-Chinese EV brand has developed and can accelerate from 0 to 62mph in 3.8 seconds.

Maximum power from the two electric motors is 544hp and the car is styled with a low nose, retractable door handles, flush glazing with frameless windows, rear aero blades and air flow optimisation around the rear light bar for optimum aerodynamics.

An unusual design feature is the absence of a conventional rear window with the car instead having a glass panoramic roof that stretches behind the heads of the back seat occupants.

The rear-view mirror is replaced by a high-definition screen that shows a real-time feed from a roof-mounted rear camera - enabling a far wider field of view than what can be experienced in most modern cars.

The digital feed can be deactivated to allow drivers to instead see the rear occupants if needed.

The infotainment system is powered by Android Automotive OS and the Snapdragon Cockpit Platform now utilises a 15.4-inch landscape-oriented screen.

Google is built-in, including Google Assistant, Google Maps and Google Play, while a Harman Kardon audio system is available as an option with 12 speakers and 1,400-Watt channel-hybrid amplifier.

An additional two headrest speakers are added to each front seat with the optional Nappa Pack- raising the total to 16. Apple CarPlay is included.

As with all other Polestar cars, regular over-the-air updates allow for new features and improvements to be sent remotely to all vehicles, removing the need to visit a workshop to gain the latest software.

Polestar 4 launches first in China, with production planned to begin in Hangzhou Bay, China, in November 2023.

The state-of-the-art Geely-owned production facility operates on 100 per cent renewable electricity.

A full-scale launch for other markets, including in Europe, North America and Asia Pacific, is planned for early 2024 - with sales and production ramping up for these markets through the course of that year.