Hello together, the smart of my girlfriend broke out on a motorway driveway in the back without any obvious reason on Saturday. We turned and stood in the back traffic (departure). Luckily the downhills reacted and nothing happened. We stopped and could not see anything, so we drove on. Later it happened again, but I was lucky to catch the little one again. It was both wet times and both a left-curve. Both was at about 40-50km/h. Data about the smart: Cabrio EZ 11/2000 0.6 54 HP 97 tkm tires are behind Contis from 2011, no cracks, 5-6mm profile. I hope someone can tell me what could be broken, because that can’t just happen. Thanks already greeting Schlütii