Hugo Spowers, chief engineer and founder of Riversimple, poses for a photograph with one of his company's hydrogen powered 'Rasa' cars in at his factory in Llandrindod Wells in central Wales on November 23, 2020. - Hydrogen-powered car manufacturer Riversimple is hoping to steal a march on competitors ahead of Britain's promised "green revolution", which would see petrol-powered cars banned within 10 years. Riversimple is only an ambitious upstart compared to the Asian automotive giants, but is currently the only British manufacturer in the sector with its flagship model, the Rasa. Founder Hugo Spowers is keen to take on the big boys with his self-designed model, whose name derives from the Latin 'tabula rasa', or clean slate. Advanced testing of the Rasa will begin over the next few months, with paying customers including Monmouthshire District Council in south Wales, which has given the go-ahead for a hydrogen refuelling station in the town of Abergavenny. (Photo by GEOFF CADDICK / AFP)