I'd love to see a TV show/movie with a car like that, it bugs me when the drivers are looking at their passenger instead of at the road, I can't appreciate the intention of the show because I'm anxiously thinking 'look at the road!'.A camera in your steering wheel that sounds an alarm every time you take your eyes off the road!
Regarding cars that test for alcohol, I am not sure I understood what I read, but when I went to Europe I took a boat from Dover to Calais and the paperwork said that if a person was bringing their car they had to have an alcohol test thing installed to meet French requirements or they would not be allowed to drive in France.