Today, our Twingo (or that of my sister) fell victim to my holiday boredom. After washing and polishing, I have dressed myself to the rims. I also got rid of the grossest dirt well (with bath cleaner and tea rent remover) but not everything. Does someone know a cheap means with which to get that away? Also like some home remedies. I put a picture on it so that you can see what it is about. I hope you can recognize it.