It's pretty small, ultra-light two-seater, which weights only 580 kg (1,279 lbs). Weight (lowered by use carbon composite chassis), size and aerodynamic makes is also fuel-efficient as just 1.5 kg of hydrogen in needed for 300 miles according to press release.

"…every aspect of the Rasa has been tailor-made and interrogated for lightness, strength, affordability and safety, to produce a vehicle that will maximise hydrogen as a fuel source and minimise pollution."

Later this year Riversimple intends to launch public Beta with 20 cars, while sales could launch in 2018 in "sale of service" model (fixed monthly fee and mileage allowance).

Interesting is also intention to "adopt an open-source approach to its technology and componentry to encourage the proliferation of its technology and economies of scale within the sector"