British sports carmaker Aston Martin unveiled a fully electric concept of its Rapide S four-door sports sedan in London.

Aston Martin christened the new concept car as RapidE concept and has been developed in collaboration with Williams Advanced Engineering at Grove, Oxfordshire. Williams Advanced Engineering is the engineering services arm of Williams' Formula 1 team.

The car is on display outside Lancaster House, the venue for the meeting between the British royal family and President of The People's Republic of China, Xi Jinping.

The RapidE concept of Aston Martin is in support of a summit organised by the British government to showcase the country's eagerness to welcome visitors, businessmen and students. 

"We see luxury electric vehicles as an intrinsic part of our future product portfolio and welcome ChinaEquity into the next phase of study for the project development," said Dr Andy Palmer, CEO of Aston Martin.

"The exciting RapidE concept tangibly demonstrates the capability and ambition of Aston Martin towards developing low- and zero-emission sports cars," Palmer added.

During the Lancaster House event, Aston Martin and Chinese investment group, ChinaEquity, announced an agreement to develop a production version of the RapidE concept.

The showcased car at London comes with a mysterious black box in place of its 6-litre V12 engine, reports BBC.com.

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