Um, it seems like most people don't realize that virtually everthing in a modern car is computer-controlled. Which means implementing this feature is a simple software adjustment. Heck, I can even illustrate it with one line of code:
if accel_level > 0.2 and brake_level > 0.2: accel_level = 0
Okay I'm sure it's not quite so easy in the car's programming, but what I am sure of is that it's not expensive... you can already get it standard in a $12000 Nissan for fuck's sake. From TFA it looks like that the cheapest Toyotas have it as well.
I never post anymore but there is such massive ignorance on this thread I just couldn't help it. Anybody bitching about this being an expensive government imposition either doesn't know what they are talking about or is just pushing their own political agenda. (Or both.)