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With Saab jumping the gun on this, it looks like Volvo is also taking a pre-emptive strike against drunk drivers. Their "in-car Breathalyzer" requires drivers to breathe into the device in order to start the engine. If your seatbelts are fastened and your alcohol rating is low enough, you can start driving. In addition, the Volvo model comes with a programmable key for parents to set the maximum speed to stop their teens from flooring it to the prayer meeting.

Volvo's Multi-lock System Prevents Drunk Driving [StrangeNewProducts]