So, I'm trying to show a neighbour the Roadster, sitting safely in the road outside his house, when his Mother-in-law starts reversing out of the drive... I'm about three car lengths from her on her left side, across the road. What could possibly go wrong? Well, he sort of leans in and says politely-but-firmly "um, you might want to give her a bit more space". She looks about 90 and is driving a beat-up white Oldsmobile. Doesn't seem too worried about what might be behind her. Some of you have probably seen her around. So I put it into "R" and creep back, literally creep, but she keeps on coming and I'm trying to watch the reversing camera and her and the wing mirrors, and there are kids everywhere, and the rear right wheel scrapes a 3" high mini-wall of those ornamental stones people put around their lawns (really! what is wrong with these people! ). Now I have three roughly inch-long scrapes on the rims. Very minor really, but after less than 48 hours driving our new car it was a bit annoying. As pennance/punishment I am planning to follow some instructions like these (linked). It might teach me to be more careful in future. Just wondering if anyone has any advice on using a different spray from the one suggested there. It looks a lot like my alloy wheels but I thought it was worth asking here. Thanks in advance.