[niky]

Well, considering cars are only crash-tested and certified to 45 mph, the chances of people dying become very, very small indeed, unless two cars going 35 hit each other head on... with unbelted passengers.

The reason we don't do any of those things, though, is a very low speed limit would be detrimental to the economy. Time is money, and below a certain speed, you're sacrificing money for safety.

While people view the government as a safety Nazi, there's a good reason that ejector seats and parachutes for each passenger aren't mandatory for airliners... the amount of risk reduction and death prevention doesn't outweigh the costs.