The rear seat pillow was a bid large compared with the rear fender
Fender was 90mm and the pillow was 110mm so it was looking Lomb, and that's something I didn't want.
How to solve such problem, I needed to add some volume at the rear so the seat would look proportional to the rest.
Needed a nice round shaped object to give it a 50's aerodynamics
It started his live as a Bianchi fuel tank.
After some cutting
After more cutting
First impression, not bad the length and rounding is good
Started on the rear seat construction
Giving it more strength
Cleaned - grinned - welded it all
Welded the tank on the rear fender
giving a nice 50's look
It almost mach the original rounding of the cardellino fender