Mrmagooo, the Embraer is indeed CAT III capable, manually flown CAT IIIa to be precise, and nothing to do with lack of mods.
However, the CAA require the aircraft to fly a certain number of sectors, I don't know how many, before we are allowed to use it in anger. I have flown CAT III approaches in the simulator using the HUGS and it's a brilliant bit of kit. It also allows us to use lower than standard minima for CAT I approaches, specifically a 50' DH (I think). As and when we get the approval isn't yet known.
As an aside Flybe was the first European operator to do a manual CAT III approach and landing for real. CRJ into Leeds a few years ago.