Hi,
Do you mean the current production 9-5, or the classic 95 from 30 years ago?
If it's a true 95, you're going to need to look in the owners handbook for kerb-weight and maximum braked trailer load. And if it's a 9-5 (from anything up to 10 years ago) then do the same thing.
Then confirm that the maximum all-up weight of the caravan is less than the car maximum braked trailer load, and if that is OK, then hopefully the maximum caravan weight will be around 85% of the car kerb-weight - which has a good chance for stability - but no idea about performance.
That dash between the 9 and the 5, or the absence, is quite important
Robert