It's not the risk of failure, that can be managed with RAMS and SIL ratings. It's the lack of feedback. I don't want the steering wheel to feel like a video game. I want it to fight back, to feel like a steering wheel. Otherwise I'll have no idea when the wheels are about to cut loose.

So if I have to turn my wheel suddenly to avoid a small child who wandered onto the road, the Nissan system will automatically correct and put me back in the lane, hitting the child?

Yes, it is partly the risk of failure. Airbus, for example, had a pretty terrible record (although pretty well hidden for a while) with its initial "fly-by-wire" systems. Even in just the last few years it has been labeled the cause of more than one rather severe failure.
Granted, Boeing also gradually also went fly-by-wire, but they took a slower and more careful approach. As a result, there have been relatively fewer accidents directly attributable to their electronic systems. (I am not making claims about the overall safety of either one.)

If i am going to pay for drive by wire I want to get rid of the steering wheel. put the gas and brakes on the same joystick as well.
re; Anne Ominous
The problem with the Airbus fly by wire is that the Airbus design management culture sees the pilots as the problem they are trying to fix.

I agree with Pikeman. I would like to see the benefits of such a system fully exploited from the beginning. But I guess their typical customer hates driving and avoids change. However the plus side is that this technology can mature on a car that I won't buy.

nicho: My M37's traction control is nearly impossible to break lose. It is amazing. I've thrown it in to sandy, off camber corners at very high speeds to test it and have it brake individual wheels and recover faster than any human could. I for one, trust our robot overlords at Infiniti.
paulgo: no, the lane departure correction feature is already built in to many cars (including mine). If you aren't actively steering and it notices you're leaving a lane at freeway speeds, it counters by very lightly braking on the opposite steering tire to pull you back in. If you indicate or actively steer out or are below a certain speed, it won't fight you. The only difference with this system is rather than using brakes to steer, it can just steer directly. No children harmed.

I am expecting a car that is all solid state. No moving parts.
My girlfriend just broke a leg as a result of a brake pedal, an ashtray and a crash.

Better train auto techs to service those makes BIG time & esp AAA Roadside Emerg Service crews nationwide

Honest officer, I did not run over that pregnant woman with her son, the car did it, or the train, your car sitting on the track Honk, HONK and you press the gas pedal and it just sits there, yes I am an a German Automobile technician since 1972, and yes I stay up to date we have been waiting for this, prepping, we have throttle controlled by computer since 1996, should be cool

They want to remove feedback? No bumps, wind or camber forces transferred back to the driver - noo that's a bad thing! I aint buying no drive-by-wire Nissan!