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 UK, Cambridge University (12, above) has spent several years trying to make their series of teardrop-shaped cars succeed. The new rules may help with this. Meanwhile, Durham University (20) have improved their 2015 car (DUSC, below), and are ready to make it zoom. Who will be the fastest British Challenger this year?