Why did the German motorist drive into the river?

The following was sent to us by Michael Curran.

BONN, Reuters [WS]: A German motorist obediently following the satellite-guided navigation system of his car drove straight into the Havel River in eastern Germany, police said on Saturday.

He drove his BMW on Friday night past a stop sign, down a ferry ramp and about four metres (12 feet) into the river before stopping. The 57-year-old driver from Hamburg and his passenger were not hurt.

Police said the driver reported he was following the navigation system, which had evidently failed to notethat the road in the town of Caputh near Potsdam ended at a ferry crossing.

"Normally accidents like this shouldn't happen," said police spokesman Frank Heinichen. "But that sort ofthing can happen when people rely too much on technology."