Some 200 teams from 26 countries are competing in this year's edition of the Eco Marathon to determine who has built the most energy efficient vehicles, at the Lausitz Eurospeedway in Klettwitz, May 26, 2011 – Photos by AFP
Some 200 teams from 26 countries are competing in this year's edition of the Eco Marathon to determine who has built the most energy efficient vehicles, at the Lausitz Eurospeedway in Klettwitz, May 26, 2011 – Photos by AFP