Nuna2 won the World Solar Challenge 2003 with an average speed of over 97 km / hour. This took 31 hours and 5 minutes.
During the race Nuna2 achieved speeds of 130 kilometers per hour. The decisive factor of victory was the professionalism of the convoy, the actions of the team in racing conditions. The optimal energy usage was determined with weather forecasts and data coming from Nuna. Also, the tire changes were optimized, these lasted 4 minutes maximum, in contrast to the 12 minutes that other teams needed.
Nuna2 weighed 250 kilograms, which is 30 kilograms lighter than its predecessor. In addition, the aerodynamics were improved to become slightly less than 0.9 CdA. Both resulted in a lower air and rolling resistance.
After the World Solar Challenge Nuna3 made a tour around Europe during which a speed of 145 km could be reached!