is 185k miles good for a used 1997 pontiac grand prix GTP supercharged?

not good at all, especially for an american car, the imported european cars are built for longer lasting cars and more miles to be put on them, in other words, no, not good at all.

assuming 13 years of being on the road I calculate about approximately an average of 14,230 miles a year which fits in the typical 10,000 - 15,000 miles yearly average of most Americans. It also depends on how well the car was maintained. You may want to get a friend and/or a mechanic to check the car out to get their opinions. While it is a high mileage, making a decision based on mileage alone is not enough.

I am at 195,000 on my '04 GTP with nothing major yet. My brother is at 270,000 on his Chevy Silverado...I don't think that is too bad.

kind of high millage,but if road miles and serviced reguraly,should be ok.

my son has one with about 325,000,,still runs goos,,had to replace the transmssion though

if the mileage is well maintained mileage and not beat up mileage