Talk about lightweight car with security

Two years ago, I wrote a article on the relationship between the lightweight automobile and traffic safety, but not officially published, this, once again the old title renegotiated.

Order to reduce body weight, such as high-performance models of the BMW M6 like to spend a carbon fiber roof, of course, in order of appearance.
Car lightweight for most of the the driving original car owners, there is not a negative factor, on the contrary, I have seen in all likelihood the owners of the car, will think that the car is heavier, the better outside. "Accord not too light, only one ton VI, not crashworthiness!"; "Benz good small one E-Class, almost two tons, security!" This is It is said that "for security", but this is simply is a fallacy. The increase in body weight for the depot is concerned, in fact, is a too awkward, consumers want their own car, foot interior space, luxury equipment naturally as possible, so that the car can be easy to sell, in order to reach the market demand, the depot Only consumes more steel, leather, plastic, even wood, the more exaggerated spend really marble to create a cabin atmosphere the car naturally generation than a generation, access to vehicle data will find most of the facelift car weight will surpass the previous generations. However, the increase in body weight, smattering of consumers on the car, which is a good thing, they think of is "thick steel plate"; "there are real leather"; "space many" but for these engine displacement increases, or to re-writing the trip computer, engine and more work is done, all know that the law of conservation of mass, right? Acting more, in addition to the technical factors in part from the increased combustion efficiency, more or because the fuel consumption increased. Increase in weight of the vehicle body, which also causes the other part of the load is also increased, the suspension system loads increase, inevitably lead to a decline in flexibility; naturally mention tire load; There are braking systems, a large weight, inertia the big braking system in addition to controlling the rolling friction, but also to control sliding friction, the great impact of the latter for security, I had tested a domestic facelift car, Body weight has been much greater than the previous generation, although the tires, etc. upgrade, but test the performance of the braking system, brake inertia people cold sweats.