As this is very closely related to my current work, this survey from Nippon Research Center on autonomous driving is very interesting to me.
Between the 1st and 7th of July 2015 1,200 members of the Japanese public were randomly selected and interviewed face-to-face. 50.3% of the sample were female, 6.0% in their teens, 12.4% in their twenties, 16.2% in their thirties, 17.8% in their forties, 15.2% in their fifties, 18.1% in their sixties, and 14.5% in their seventies.
In Q1, the four levels mentioned are described in this document. Level 1 is simple automation of a single function in specific conditions, like maintaining speed while using cruise control. Level 2 controls multiple function, like automated parking that exercising acceleration, braking and steering simultaneously. Level 3 is autonomous driving in specific situations, like motorway driving, and finally Level 4 is 100% full automation in all situations. As far as I am aware, Japanese manufacturers are at Level 2 for parking, lane keeping, etc, and although there are demonstrations of Level 3-like behaviour, they are very canned. Google are probably high Level 3, and Tesla claim Level 3 for motorways, but I don’t really believe it.
I love the smug Eikichi Yazawa’s “Look no hands!” in this ad:autonomous,car,nippon research center