Photos: Watched at the wheel

Black boxes are recording data on drivers' behavior--and not everyone's happy about it.

Watched at the wheel

Proponents of black boxes in autos say the devices promote safe driving. This General Motors sensing and diagnostic module--part of a car's airbag system--is one type of black box.

Credit: Airbagcrash.com

General Motors sensing and diagnostic module

Watched at the wheel

Vetronix makes a $2,500 tool that can download data from General Motors' and Ford Motors' black-box-equipped cars. Critics of the devices say people's privacy rights could be violated in the absence of regulations governing how the data can be used.

Credit: Airbagcrash.com

Vetronix tool

Watched at the wheel

Manufacturers are increasingly turning to high technology to differentiate their products in the hypercompetitive auto market. General Motors' Corvette is among the models that come equipped with a black box.

Credit: Corvette

Corvette

Watched at the wheel

Road Safety International's $280 RS-1000 black box is designed to help teen drivers stay out of trouble. The box connects to a car's onboard electronic system and measures the car's speed, as well as its cornering and braking forces. The device emits a noise tone if the driver goes out of bounds.

Credit: Airbagcrash.com

RS-1000

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