Just found this on the net. Looks like there is a concept GP Cabrio in the pipeline:
http://carscoop.blogspot.com/2006/02/fioravanti-skill-concept-fiat-grande.html
hmmmmmmm not sure myself
http://carscoop.blogspot.com/2006/02/fioravanti-skill-concept-fiat-grande.html
hmmmmmmm not sure myself