Q:

Is this Quercus coccifera?

This specie grows in a dry hilly area in the south of France close to Marseille. I made the picture today. It is quite dominant and grow close to the soil maybe about 50cm.

A:

Yes. That is definitely a Kermes Oak / quercus Coccifera.
It should start blooming in a week or two, in case you're still in the area by then I recommend checking it out.
It is thriving in that area specifically because it's a dry area, otherwise they tend to be pushed out by Holm Oaks / Quercus ilex.
The combination of the area (see below), habitat (dry hills) and picture (especially the acorn cupule) are pretty conclusive and support your original assumption.

