Are you looking to go into the export business with used cars? Probably the first thing you'll need to do is to set yourself up as a business in France - SARL or SAS or whatever. But a quick google turns up a couple of sites that might set you in the right direction:
Out of interest, why would you want to do that?
Cars from France will have corrosion from the harsh winters and will not be GCC spec. (Cooling, A/C etc).
If I were looking at this type of business - I would be sending vehicles in the other direction! From UAE to Europe!