Donna B has a fun piece on the topic, though it might spark some reflections on simplicity, worry, priorities, and the like.
Our record is a Nissan Sentra that we owned from 110,000 to 257,000 miles, at which point we gave it to a woman at church who needed to urgently move back to Minnesota and had no vehicle. Apparently the car made it and lasted another 8 months, though I never got an official mileage reading on it.
We've always bought cheap cars, though Tracy has been an influence for upgrading to things that look more attractive and/or cause her less worry.
I remember an adult Sunday School class on stewardship 20 years ago - so double or triple the final figure by now - that if you started buying cars on 4-year plans at age 20, trading each in as it was paid off and starting a new 4 year loan - at age 65 the finance company would have a million dollars of your money...and you would have a used car.
Plus if I had a nicer car I'd have to dress better.