The new Audi A8L does not have an all-aluminum body.
The new Audi A8L is on the market, and all kinds of promotional materials are bursting. However, even if you search the whole network word by word, you can't find the words "ASF" or "all-aluminum body". You know, this can be regarded as the foundation of the Audi A8! Why is this happening? The reason is simple: the new Audi A8L does not use an all-aluminum body.
About ASF and all aluminum
People who have been paying attention to Audi very early know the terms ASF and all-aluminum body. In the 1990s, Audi, a luxury latecomer, in order to differentiate himself from the opponent when he built the A8, he thought of making a fuss about the body materials and developed the (almost) all-use aluminum through the space frame structure. The technology of the material, and thus formed a certain sensational effect. For a time, some Audi powder, technical control, and therefore think that A8 is indeed superior to S and 7 series.
The data is also quite shocking - the second-generation Audi A8's body-in-white, weighing only 215 kg!
What is the concept of 215 kg?
In this era of repeated emphasis on lightweight, the body generation is lighter than the first generation, the fourth generation A8 is now developed, and the body-in-white weight is 282 kg. The Jaguar XFL, which is smaller than the A8 and is also known for its all-aluminum and lightweight body, has a body-in-white weight of 292 kg.
So, since it is such a cow, why does Audi not continue? For example, the development of a body-in-white of less than 200 kilograms, isn't that bullish? In order to do the opposite, the proportion of aluminum is getting less and less, and the weight is soaring.
The reason may be unbelievable: the all-aluminum body is a "pit" from beginning to end.
In addition to being light, all aluminum has no more advantages.
Why did Audi want to get "all aluminum A8"? Of course, Audi will not say that it is necessary to "make a gimmick." The promotion of the caliber is naturally to emphasize the advantages of all-aluminum. In the past, under the accumulation of various publicity information, the benefits of the all-aluminum body seem to be terrible. Some things, even Mr.Car, almost believe it.
In fact, everything has become clear since its development. The benefits of an all-aluminum body are actually only one point, and that is light. Everything else is deceptive. However, for this "light", it has to be at the expense of a lot of things.
What are the costs?
1, security
With the same level of care, technical ability and cost, it is impossible for all aluminum to have the safety of the composite body. In other words, it is necessary to make the all-aluminum body safe, the cost is uncontrollable, and the demand for lightweight may be greatly reduced. In fact, Audi himself said that the new A8 chose the current body material layout to be "safer." The subtext is not: it is not safe enough!
2, cost
Everyone knows that the car of the all-aluminum body can't be hit, because the aluminum is easy to break and there is no welding, and the repair cost is very high after the collision. As everyone knows, based on the same reason, the manufacturing cost of the all-aluminum body is also very high.
In addition to being intuitively high, there is a hidden cost that may be overlooked, that is, modularity and resource sharing. Because all aluminum is expensive, it is impossible to use all levels. This means that so much research and development costs have been spent on the A8's research and development results, can not be shared with A6 or lower models... Has it been lost?
In the past, Audi made the A8 have a "different" highlight, so that "anti-trend" to get an all-aluminum, from a marketing perspective can understand, but from a market perspective is not wise.
Today's Audi A8 can only be returned to the normal track.
Then, including the BMW 7 Series 5 series, why are the proportions of aluminum materials raised and raised? Because the previous brands, the aluminum ratio of those cars is too small. They used for a long time, in fact, there is no new aluminum A4 fourth-generation body with a high proportion of aluminum.
Note that Mr.Car is not here to say that the aluminum body is not good, but that all aluminum is not good. In fact, nowadays, a good body should be a combination of various materials, and different materials in different positions are the best solution. High-strength steel, aluminum, carbon fiber, anything, just use it in the right place, take the appropriate process, balance the weight, safety, performance and cost.
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