This is one of those neat accessories that you just don't see for sale very often - a fuel gauge. Of course, it is something that people didn't buy, because it isn't necessary. It fits where the fuel tank cap goes, and you can just look down to see how much gas you have. Of course, you could just look down in the tank yourself to see how much gas is in there too... which is why I guess they didn't sell too well. This one is quite cool, with the Lambretta logo on it, and the fuel measured in gallons. Find it for sale here on eBay. How much will it sell for? I predict somewhere around $80. What do you think?