With solar vehicles that are prototypes, rolling thousands of kilometers, hours during, on uneven roads inevitably leads to problems of different nature: mechanical, electrical, electronical and sometimes human. This is the case of Stéphane Bertrand who found to repair his support of solar panels, but one of his rims is cracked. Sometimes you have to know how to improvise solutions like Herman Segers with his wrench. Some even hesitate to trade their vehicle for another!?