The World Solar Challenge is an exciting race to find the best solar car in the world. That makes for serious competition between countries. But there are also some interesting contests within countries. The most obvious is between Nuon (3) and Twente (21), who came first and second in the Challenger class last time.
Within the Cruiser class, the University of Minnesota (94 this year, Eos II, above) has been the only US entry since 2013, and held its own both times (see chart at top for 2015 results). This year, however, Iowa State University (PrISUm) has entered the class as well (9, Penumbra, below). Both teams have very nice-looking cars. Which of the two will be the biggest challenge to Eindhoven and Bochum?