Riversimple is a United Kingdom-based car manufacturer of hydrogen-powered fuel cell electric vehicles (FCEVs).

It is based in Llandrindod Wells, a town in Wales, where there is a research & development centre and the company's offices.

Part-funded by the Technology Programme (now Innovate UK), this model ran in a test cell which proved beyond doubt that the technical proposition was viable.

This model is robust as well as efficient and has been designed for regulations, safety, practicality and ease of use rather than as a powertrain demo.

[4][5] Refinements to the engineering prototype have been incorporated into every aspect of the new cars now in production in the new Riversimple workshop in Llandrindod Wells.

[7] Several elements are considered during each design, including hydrogen fuel cell power sources, lightweight carbon fibre composite materials, open-source development and design, leasing instead of selling the cars, distributing manufacturing among many small manufacturing plants, and broad corporate ownership.

The company's 'beta' prototype, features several improvements over its predecessor, to drivetrain, wheels, interior equipment, headlights and aerodynamics.

[12] The trial (in partnership with Monmouthshire County Council) will see over 200 testers, drawn from households, car clubs and businesses.