No, nothing on the car will tell you the weight. Go to a track stop and see if they will weigh YOUR car. Do they do that in France? Sometimes the Chassis or Assembly Manual has the information. This site has the Chassis manual, but it didn't list curb weight.
I already sawn on the chassis manual (it is great on your website to find all the caracteritics of the car !!! thank you very much !!) and no information it is confirmed
I don't look for this information on the car because it doesn't exists.
In france this information is common on the car, even on old cars