ok, according to the paperwork, the chassis is almost @ 113k miles. the motorset is @ 52k miles, mind you most of the aftermarket parts have only been on this car for roughly 15k miles, with the exception of the ball bearing t-28 turbo which come off of a factory silvia s15 (it's mileage is unknown). the turbo cannot have too many miles on it, not to mention it's never had to push over 10lbs since i've had it. i did not expect it, with this being my first turbo car, but this car has been the most dependable vehicle i've owned so far. i hope this info helps u out.