Tank SIP XXL for Vespa 180 Super Sport??

I was thinking of changing my standard seat on the SS180 for something a bit more comfortable and I know that I will have to change the petrol tank so that the seat will fit but what tank will fit an SS180 apart from the original?

I like the idea of the XXl tank as I use the SS as a touring Vespa but will it fit?

Any help please SIP guys?

Thanks in advance

Chris

YES the XXL petrol-Tank fits!!