i normally buy a car these days that needs work on it, just bought a 58-reg clubman cooper d 104k got full mini service history really nice spec with dvd in the roof and privacy glass etc, £2000 it had done there party trick dpf got blocked so owner just kept driving in limp mode until the turbo let go and it went in to diesel over run and killed its self. stuck a crank in it secondhand head honed bores new piston rings new turbo and pipes oil pump infact used a head off a ford focus 1.6 hdi etc basically as moving parts replaced, stands me in £2600 but has a rebuilt engine that i know is very good.. i bought car with a reciept for a brand new garrett turbo fitted 1000 miles ago by last owner,, but within 1000 miles it had ruined another one just because they had not fitted it correctly and not changed the dpf filter,Indeed Mike, preventative maintenance is the key to good motoring. The dpf really does strangle modern cars but I'm at an age where I'm not in a hurry to get somewhere and the Coopers perform perfect for me. I keep a full record on a spreadsheet of everything I've done to the cars, the only stamps in my books are from the TLC packages the cars had when new and garages the former keepers have used. When I ever sell my cars I just print out the sheet and offer the new keeper the digital copy of the sheet if they wish.