Nissans/Infinities are a good car, but there isn't too many cars that aren't reliable. A car is what you make out of it and how you take care of it. That simple. I've seen as many quarter million mile Fords/Chevy's as I have Mercedes and Nissans. 135K is getting up there and anything can and will happen to a car once they start getting older. Just look a used car over very well before you buy. Don't get excited an buy a beat to shit, pile.