The EV version of the Jazz is not sold in SA, but the Hybrid is.
Speaking to my Honda workshop manager about galvanised bodies, he let slip that they have had a few Hybrids in with smells due to the battery getting hot. It does not overheat drastically or anything, but if the outside temperature is over 35 deg (quite easy this summer as it is a hot one) the plastic components surrounding the battery start to give off vapours which have a bit of an acrid smell. The battery sits in a holder which is again inside a sheet metal compartment, almost totally sealed. They remove this plastic tray and put in an aluminium one and also open the vents that face the rear of the car. He said that they only had 5 cars like that, all from up-country where it is much hotter than Cape Town. In one town (Robertson) it was just over 40 deg for several days last week.