I won't go into to much detail about the first Go One velomobile. Lets just say that the Evolution is indeed an evolution in its design. The original did not have the sweeping tapered rear end this one has. The aerodynamic capabilities of the velomobile are best when the rear end tapers like an airplane wing. The first one did not do that. This one is indeed one of the best designs on the market. A simple design with a full enclosure. It is manufactured in Germany and can be shipped anywhere in the US. Check out http://www.go-one.us/models/go-one-evolution for more information. The price comes in at just under 13,000 dollars, but the hard top roof is a 2,000 dollar option. If I was buying this velomobile I would almost assuredly have to pay the extra two grand for the knowledge that my aerodynamics where at their most optimal. As with all velomobiles lighting and directional signals are optional, but this one even has an electrical ventilation system as an option too.