What's the WORST car/truck you've owned?

I owned a '91 BMW 318is and the damn thing just wouldn't work. After it got to running temperature, it forgot how to idle, idle would fluctuate randomly, if I gave it ANY gas it went right up to 2000rpm, then it would die. It had no heat when I drove above 60km/h, the fuel gauge would dance on the highway (My GF took a video of it going really quickly between 1/4 - 3/4 - full - Empty and back). I bought it for $4k, sunk $1k into it, and finally gave up, waited til it was warm, and sold it for $3k. I hated that car. Also the 2nd gear synchro was going, and you couldn't use 2nd gear unless the car was warmed up or it was warm outside.