While hybrid and electric vehicles have become commonplace on the road, until recently, luxury British automaker Rolls-Royce had yet to show any movement in terms of a more sustainable, earth-friendly Phantom or Cullinan.

According to a recent report by UK-based Autocar, a battery-powered Phantom prototype is currently in the works at the Munich research-and-development hub of Rolls-Royce parent firm, BMW. The prototype will be used as a powertrain test bed before an all electric version of an entirely new car—rather than an existing model—will be rolled out for delivery.

The luxury electric vehicle will reportedly be built on the same battery-powered platform as the BMW iX and i7 EVs; the platform is currently being tested on a Phantom prototype that is expected to be named the ‘Silent Shadow.’

While Rolls-Royce may have taken more time than most to show signs of an electric model, the British automaker is no stranger to bespoke and creative takes on the classic luxury vehicle. In fact, Rolls-Royce has previously stated an uptick in bespoke and custom detailing amid the pandemic.

“Never before have we seen such levels of Bespoke detailing in each commission, demonstrating that Rolls-Royce clients around the world have sought solace in creativity – commissioning introspective items of luxury that will stand the test of time to become lasting and poignant legacies,” said Torsten Müller-Ötvös, Chief Executive, Rolls-Royce Motor Cars in an earlier press release.

While the ‘Silent Shadow’ could still be years away from an actual delivery date, Autocar expects the battery-powered vehicle to be built alongside the Phantom, Ghost, and the Cullinan SUV at the production facility in Goodwood before being rolled out to “tech-savvy, high-income customers” in both the US and China.

See also: Introducing The All-New 2021 Mercedes-Benz S-Class