23.11.2008USA TODAY
Swiss adventurer Louis Palmer arrives with his solartaxi in Hamburg November 21, 2008. Palmer arrived in Hamburg for a stopover from his journey around the world which he started in Lucerne, Switzerland, in July 2007. The solartaxi, which can travel at a maximum speed of 90 km/h (55 mph) on its three wheels, is powered 100 percent by solar energy obtained through the vehicle, which includes a trailer on the back with solar cells.