The auto manufacturers will kill off this idea. No way do they want the hassle of engineering and warranting breathalyzers. None of this sort of technology is ever fool-proof and equipment malfunctions can and will occur. Can you imagine all the headaches and disgruntled customers this would create for the auto companies? “I wasn’t anywhere near drunk but my @#$! car still wouldn’t start!
For the 1975, USA and Canada car models had a seat belt interlock. The car could not be started unless the driver’s seat belt was done up.
I had a 1975 Oldsmobile Delta 88 which was originally delivered with this “feature”.
There was such a public outcry when the public found out that they couldn’t even start the car to, for example, back it out of the garage to wash it without buckling up, that the law was changed and dealers disabled the interlock.
That affected so many people that it went a long way toward validating the argument of liberal regulatory over-reach with stupid and un necessary regulations.
Helped Reagan a lot.