Found it at last !
This is a "CPMI DOOM", first completed in 2010 then redesigned by Indus Design in 2011. Renault Mégane RS engine tuned by Vinégra up to 280 hp.
CPMI is the company of Régis Eneau, located in Plassac-Rouffiac (Charente).
Indus Design is the company of Guillaume Dolnet, located in Marthon (Charente).
The car can be rented for trackdays (950 € per day). It's also sold as a kit (between 5 000 and 17 000 €) or as a complete car for 30 000 €.