GPS navigation systems are a dime a dozen, but this one can tell whether you’re drunk or not. One thing. If you need this to tell you when you’ve had too much to drink, you obviously drink way too much. The G400 GPS navigation system features an integrated alcohol sensor on the side and it can tell how much alcohol per liter is in your blood.

If vehicle manufacturers are able to make use of this GPS navigation system in the future, and stop the vehicle from starting with a drunk driver at the …