Those solar cars aren't slow. > By 2005, several teams were handicapped by the South Australian speed limit of 110 km/h (68 mph), as well as the difficulties o

Those solar cars aren't slow. > By 2005, several teams were handicapped by the South Australian speed limit of 110 km/h (68 mph), as well as the difficulties of support crews keeping up with 130 km/h (81 mph) race vehicles. It was generally agreed that the challenge of building a solar vehicle capable of crossing Australia at vehicular speeds had been met and exceeded. https://en.wikipedia.org/wiki/World_Solar_Challenge https://en.wikipedia.org/wiki/World_Solar_Challenge