You can look at it this way
When a company isn't doing well at normal times and suddenly there a global economic problem, chances are that this company will show better figures than those who were in a good shape.
It happened with us, Volvo Buses are well known to be the worst brand among the Volvo Group, in terms of turnover. After the crisis they are the ones showing best figures. They are not doing good but they are not doing as bad as the others.
I guess it's the same with FIAT, I know they did downgrades and people went home but the percentages are much lower than other manufacturers.