No longer fooled by just a simple breath test, the system will measure how bad you reek of alcohol (smell sensors built into the seats), it will measure the sweat you leave on the gearstick, and, wait for it, even if you manage to fool all these systems with deodorant and clean hands, the system will also use a computer system and tiny cameras to measure your awareness.
If you fail the test, or if the car catches you having micro-sleep, the system will start issuing a voice alert from the navigation system and in some cases locking up the ignition if you continue to drive.
It can do a lot of other cool things too, if you start falling asleep, or leaving your lane, it will tighten your seatbelts to wake you up! Microsoft is also developing a similar system, but given the reliability of Microsoft software, we'd rather Nissan develop the system for humanity's sake.
"We've placed odor detectors and a sweat sensor on the gear shift, but for example if the gear-shift sensor was bypassed by a passenger using it instead of the driver, the facial recognition system would be used," Nissan general manager Kazuhiro Doi .
There are some limitations though, so far the system is not smart enough to detect one beer from two beers, so eve if you have one light beer, chances are you will be walking home.