trick by winning the World Solar Challenge for the third time in a row. The Nuna4 also won the 2007 World Solar Challenge with an average speed of 90.87 km/h...

Blog". Umicore Solar Team. Retrieved 23 May 2009. "Dutch solar-powered car, Nuna4, shines in Outback race". The Times. London. 27 October 2007. Retrieved...