Then allow me to everyone's test bed!!!!
MY PD150 is 18 months old give or take a day or so, and has just shy of 50k miles on it. Based on my three year lease, I have it for another 18 months, which if my mileage stays constant, will give a final mileage in the region of 100k.
The car is always given a decent warm-up time before its given any stick, and a cool down period before shut-off, so I show diligence in looking after the turbo.
That said, once the temp needle hits 90 and we're good to go, it does get driven as the good Lord intended

The mileage I cover is a good mix of town driving, high speed motorway stuff, and crawling through London, so I do a representative mileage sample, just at an accelerated rate.
My only problem so far is about to be fixed under warranty - a faulty expansion tank giving (false) low coolant readings, so the car beeps every so often telling me I'm all out of coolant, and to stop and consult handbook. I don't consider this a symptom of being a turbo charged engine, so we can ignore that!
I'll keep you all up to date as mileage increases.
