Thanks for the info ottoman, i thought that would be the case, i do remember in the last posts (my twingo has a noise) that a fellow forum member posted to say that they had a twingo gt and no noise heard from theirs.
In that respect it would seem that mine does have a fault and does need to be sorted out, hopefully soon!
Oh a quick add on, could you tell me how many miles the one that you drove had done and how old it was?
It was an 08 car and had about 3500 miles on the clock.
The various Clio IIIs I have driven with the 1.2 TCE engine which I would imagine is the same set up in the Twingo ranged from a few hundred miles to several thousand.