Picked my car up from Reno today, after another week in the shop and this time they seemed to have fixed all my problems.
During the course of my conversation with the RTE he told me that they recieved a disk fron reno today with the new engine software on it, which he installed into my engine computer.
He said if was to help the engine run smoothly during the cold start to operating temp. transition.
The wording used on the report was:
Loss of power/poor throttle. Carried out full computer check - no real problems have shown up. We received a new reprogramme disk from Renault and the car has been updated to the latest spec with this disk. On road testing the car does feel more responsive. Customer to confirm that this has made an improvement.
The car does seem to feel better, but then after a week of running around in a 1.2 (no offense intended) it would feel faster anyway, I guess.
It may be worth popping into your local reno and getting the software updated on your cars, too.