​Riversimple is a British automobile manufacturer based in Llandrindod Wells, Wales, specializing in hydrogen fuel cell electric vehicles. The company's primary model is the Rasa, a two-seater car powered by an 8.5 kW hydrogen fuel cell and equipped with four in-wheel electric motors. The Rasa has a range of approximately 300 miles on 1.5 kg of hydrogen and can be refueled in about three minutes. The vehicle features a carbon fiber monocoque…