I have a 2004 Infiniti Fx45. Almost 190k on her and she’s still running strong, new motor mount at 170k. New radiator at 180k. I will say it will need some new gaskets and seals soon but just normal maintenance and oil changes and you’re good. Still shifting ok, going to do a flush and that more than likely will improve the small delay and hard shifting. Over all it’s a pretty reliable vehicle if you can afford the gas. Fx45 does burn oil so I have to stay on top of that. Checking it every other day will ensure I won’t run too low.