How many years will it take and how many of these vehicles must be sold to stop 700,000 rear end crashes per year? My guess is a heck of a lot. If on average 1 in 100 cars is involved in a rear end crash each year (which seems high), there must be 70 million of these cars on the road for this reduction to occur.

It seems that these automakers are just adding more features to a car than the public really wants and that these cars will not be repairable on an economic basis after they age and things begin to break. Also adds to the new car cost.