Car sy’n defnyddio hydrogen fel tanwydd yw’r Riversimple Rasa, a’r unig allyriadau yw dŵr pur. Golyga hyn nad oes angen batris. Mae’r busnes yn bwriadu newid o werthu ceir i wasanaeth tanysgrifio.
The Riversimple Rasa is a hydrogen fuelled car, emitting nothing but pure water and eliminating the need for batteries. The business plans to move from car sales to a subscription service.