[Stardust]

When automakers were first installing automated voice prompts in cars ("your door is ajar") decades ago, their consumer research found that people overwhelmingly preferred female voices to male ones, said Tim Bajarin, a Silicon Valley analyst and president of Creative Strategies Inc.

This may explain why in almost all GPS navigation systems on the market, the default voice is female. One notable exception has been Germany, where BMW was forced to recall a female-voiced navigation system on its 5 Series cars in the late 1990s after being flooded with calls from German men saying they refused to take directions from a woman.