Marriage license.
Overall, probably the 1995 Mitsubishi Eclipse I bought from a "friend" for $2500 (Inspected) for my son just before he actually even got his license.
POS was nothing but problems...alternator, motor mounts broke, major oil leaks sprung up, exhaust rattle, tire tread separated, etc....and this all happened between the day I bought it, and 3 months later when I sold it...which was a month or two before my boy even got his license. I was driving it occasionally to make sure it was a decent car, which it wasn't...lol.
Sold it "as-is" to some couple for $1500 just to get out from under it, even filled the gas tank first, and the guy was a self proclaimed Mitsubishi expert...til they called me a week later wanting their money back because the engine blew up, from the expert never fixing the oil leaks I showed him, and his girl running it out of oil...
That was my first, and LAST, used foreign car purchase. I've NEVER bought a new car in my life, nor have I ever sold a car due to it just being a regrettable mistake. I'm a mechanic by trade, since 1981, and have bought, sold, flipped, wheeled & dealed and traded cars since then...and I have never sold a car for less than I paid for it.