So far, over-dependence on GPS devices has resulted in more inconvenience
than actual danger, but things took a turn for the worse earlier this month when a U.K.
woman sent her £96k Mercedes SL500 flying into a river, trusting the car's optimistic GPS guidance instead of the road signs warning of impending doom. Matters were made worse as the river was swollen from recent heavy rains, which caused the vehicle to be swept some 200 meters downstream before the woman was able to escape. While she emerged unscathed, the car unfortunately wasn't quite so lucky, remaining stuck in the river for a week after the incident and now believed to be a complete write-off.
[Via The Register