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

'91 Mercedes 560 SEL
Actually drove like a dream--even in 2012, when I owned it for six painful months. Bought it for $4K because it had an engine rebuild, tranny rebuild and suspension rebuild. So what else could go wrong. Everything. And brother, everything costs with a Mercedes. $4,500 later in repairs at an independent and fair shop (within six months), I was done with it.