of course the subjects draws much anticipated attension for tech lovers and drivers alike. However, efficiency and defectless system of this calibre may not be guarenteed even with outstanding facts. Hence, besides all the most important aspects to put in mind, the biggest problem that may be encountered here, as with all other networked devices (nodes) may be virus and inteference. Now, one other factor to worry is the ratio of self drivers to that of manual drivers on the road. what possible flaws can be made of this i.e. if the two would driving on the same roads...