Hi con welcome to loc, I had is220d se-l 2006 for 2yrs, not bad car to drive but bit sluggish, if u gonna do just local miles then aviod is220d, my dpf got blocked twice due to local driving, it's only good if ur gonna do high miles.i got is250 now better car to drive, smooth, good smooth gearbox. Mpg is almost same as my is220d, all depends on ur driving habits. With such high mileage probably gonna get hg,egr,dpf etc etc problems, is250 even with high mileage never heard anyone with problems as long it's been looked after properly.i sold my is220d se-l with 93k on clock,didn't have any major problem as mentioned that y I sold it as didn't want to find out. Good luck