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Toyota develops car alcohol detection system

Toyota Motor Corp. unveiled a technological advance at the Tokyo auto show this week: an alcohol sensor system. Cars fitted with the system will not start if sweat sensors in the steering wheel pick up high levels of alcohol in the driver's bloodstream.

The system can also detect dilated pupils and abnormal steering. The automaker hopes to begin fitting cars with the advance by the end of 2009. Nissan is experimenting with a similar breathalizer system. Courts in the US already impose alcohol ignition interlocks on convicted drunk drivers. Caroline Gutierrez

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