Having recently purchased a 2000 W reg Seicento S Mia for my wife, its seems its not very good at being re-fueled, it suffers from the fuel back pressure, resulting in petrol on your shoes and on the floor, so could anybody tell me what the full fuel capacity is as we have only managed putting a max 15 litre's in at the most. I have been told its had a new fuel tank fitted, and the possibility of the breather pipe mite be not connected properly or wrongly fitted. Any advice gratefully received