Because it's heavier perhaps?
Most of that weight will be concentrated along the axis of the (rigid) chassis and engine.
......well , that's my theory at least ;-)
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Purely based on the visual evidence; it would appear that the Touran appears to come off less damaged when hitting a 300-tonne concrete block that someone's thoughtlessly left lying in the middle of a motorway.
The F150 squashes the alloy-honeycomb crush structure on the block much faster - probably due to it's greater mass - and then has to use the vehicle's own crumple zones to absorb the rest of it's considerable momentum. The driver still seems to suffer a less rapid and more linear deceleration than the Touran.
Heavier vehicles will always appear more damaged when hitting an immovable object due to their having to absorb massively more momentum within their own structure. In a real vehicle-on-vehicle impact their stiffer framework won't even begin to deform until it has crushed the other vehicle's soft crumple-zone into a solid mass; thereby dissipating a considerable amount of the dynamic forces externally.
What would have been even more interesting, would be to have seen the results of an offset head-on between the two vehicles. As they headed towards each other; which one would you have chosen to be sitting in - and why?
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So what F150 crumple zones would they be then?
It appears to me that the F150 uses the passenger cell as its crumple zone.
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TourVanMan TM < Ex RF >
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>>Heavier vehicles will always appear more damaged when hitting an immovable object due to their having to absorb massively more momentum within their own structure.
If the heavier vehicle were just as structurally efficient as the lighter, the damage would be comparable. In fact, you could view intrusion after an impact as a rough measure of the ratio beween the vehicles mass, and its structural efficiency in that direction or type of impact.
If, however, the heavier vehicle didn't use the extra material to provide the required extra structural stiffness (or beyond yield, more structural strength), the heavier vehicle would be damaged more.
Number_Cruncher
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