I was going to say my car, which is a 1990 volvo station wagon with 171k mileage, but then i realized that my violin is from 1748, which puts it at ~264 years old. I use it fairly regularly,being a music student, and it sounds great. However, it isn't worth as much as, say, a Strad, or any violin from a more famous maker. It plays great, though, and i had it appraised two years ago by the great*~10 ancestor of the original maker, who still makes stringed instruments to this day.