Thats exactly what I was thinking, i've run 60k plugs to 80k before with no sign of deteriation on my last car as they were such a swine to change.

It does have an ever so slightly lumpy idle so I think i'll stick a bottle of injector cleaner in with the next fill of fuel and see if that clears it up.

Car went in for its IOM test today and went through ok, so I can now register it over here and that is also its last MOT as we dont have an annual test over here just an initial test when you bring a car over 3 years in from the UK or elsewhere.

During the test he did advise me to get the rear tracking checked and pointed out the inside quarter of both rear tyres are showing signs of scrubbing which i hadnt noticed, has anyone else had that problem?