Am I the only one that thinks a self driving car needs far more than a 'software update'? I would imagine it would need multiple redundant 360 degree sensor pac

Am I the only one that thinks a self driving car needs far more than a 'software update'? I would imagine it would need multiple redundant 360 degree sensor packages. Supposedly the Google self driving cars analyze a gig of data per second so more processing power would likely be needed too. That is not to say the platform may not be a self driving car at some future date... Also one good software bug that loses lives might be enough to destroy Tesla financially as well as their reputation at this stage.