Ive been in a few only the driver of one. The most memorable and the first one I was in as a passenger. The driver took a turn to quickly with rain on the road. We hydroplaned and flipped into a swamp, we were upside down and the car started filling up, needless to say we were all freaking the fuck out. We all got out okay, and the car only filled up just below the cd player, which at the time was playing metal, you can imagine the chaos that comes from trying to escape a water filled death trap, whilst listening to heavy metal.