I just purchased my 172 on Thursday I have had many a cars from civic type r s integras allsorts bt I love my Clio to bits unfortunatly on the way home tonite it's lost loades of power and is running lumpy even on idle looking at the history of the car it's been advised the cat be replaced so iam starting to think it may possible be that the cat has broken up therefore blocking the exaust system making it difficult for the engine to breath. I just hope it is nothing major I no a cats a costly repair bt if it is that I will replace it with a De cat anyway enogth of my ranting just makes me feel better gettin it off my chest has anyone else came across this problem