I wonder if they fit a more powerful air conditioning system for Italy's climate.
Not for this Jazz, spare part numbers are the same both for Italy and Sweden, they send the same kind of car from Japan.
European manufacturers usually make two or three kind of cars depending from the climate zone (hot for Italy, Greece, Israel,..., temperate for France, Germany, Belgium,.., cold for Sweden, Finland...) but manufacturers such as Honda and Subaru use to not distinguish, so the same car can be sold both in Italy than in Finland depending from request.
Uk cars could be different thanks to the LHD and RHD.