My '95 318ti has ~225k on the chassis. Probably around 100-120k or so on the m52b28 thats in it. Probaly 300-400k on the random used sloppy trans I tossed in it. and 300k or so on the 2.79 rear diff from an early 325e. I beat the [censored] out of the car and take it on long drives. Gets great mileage (best of 34.5 mpg so far) on the highway. Will become my next trackcar eventually.