Probably not in 2014 but whether it is a camera or some other warning device or system, rear safety something will be here soon enough. As the regulators dither away, at some point there will be a date certain. Of course, I could be wrong but the automobile safety advocates do tend to get what they want, and I do not see this being different. I could list items we now have today that we did not have pre-1965 but the list would go on and on and I would certainly miss something. The original post asked for a date certain. At one time there was a date certain. Today as far as I know there is not but based on history there will be.
We do have ten airbags and if I recall correctly those were not required when the Sonic came out but were then and still are mandated for 2014.
And I must see a need for all this safety equipment because as some will recall my other car is a Corvair.
Laborsmith