The Desafio 100km 1litro will be 100% Open Hardware. This decision was taken after our participation to the Open Hardware Summit at the MIT and the interesting exchanges we had afterwards in Boston. The official rules integrating this decision are going to be published very soon.
For more information about Open Hardware, check the OSHWA web site.
The official rules can be downloaded in the “Rules” section fo this site. You will always find the last version of the rules there. And if any new release is made we inform on the last page about the changes and their impact to make your work easier.