A few years back, Honda made a big deal out of Million Mile Joe, who put over 1 million miles on his Accord. I think it was 20 years old, and he put on over 50,000 miles a year as an insurance claims adjuster. The one thing that made his mileage legit was that he kept all records, including a logbook, of all of his maintenance and repairs. They gave him a new Accord after a ceremony in his hometown. I only say "legit" because on the old mechanical speedometers, it is nothing to go in and change the mileage by rotating the cylinders.
My '97 made it to almost 290k miles but I "retired" it due to numerous problems, and rust. The worst of it is the transmission--there is something wrong with the parking pawl getting stuck in park, so I have to leave it parked in neutral (with the brake on, as always). Paying to get it repaired would cost way more than the '97 is worth, so I'm looking to replace the leaky oil pan (it's rusted through) and just sell it off as a mechanic's special, or just drive it to the junkyard (after taking off the nearly new tires).