The two seater is the work of Hugo Spowers, a former motorsports engineer. Spowers not only developed the car and its powerplant, but also its nonconformist R&D philosophy. Plans for the Riversimple Urban Car will be "open source." Like a Wikipedia entry or the Firefox browser in which I'm typing this post, the Riversimple will be open to tinkering by a community of experts free to download the plans and make their own changes. Spowers says open collaboration on the Riversimple car will speed development and improve the end product.