Sorry Liz, didn’t mean to offend. Personally I wouldn’t take anything published online as completely factual. Although when it comes to Starmer anything’s possible.
The “black box” data recording (OBD) has been part of modern car design for several years now & I really can’t see manufacturers agreeing to fitting breathalysers into cars, driverless cars would probably be here before that.
Again, sorry if I came across as having a go at you. It certainly wasn’t my attention.