Elcano #1 is located in Seattle, Washington, USA. The chassis is a Catrike Dash (http://www.catrike.com/catrike_dash.html) with mast, pedals, seat, chain, derailleur, etc removed. The rear wheel has been replaced by a Pedalgreen 16” wheel with hub motor. (http://pedalgreen.net/ ) The vehicle meets SRS Robo-Magellan (http://www.robothon.org/robothon/robo-magellan.php ) size and weight limits.
The typical electrathon vehicle fits into the Elcano class when modified for autonomy. Other sources of of recumbent tricycles are:
http://www.terratrike.com
http://www.greenspeed.com.au
Elcano brake control
Elcano steering control