What do the government crash testers use to determine the speed of the car before it impacts? If they rely on the cars speedo, and since most speedo's read high (assumption) then wouldn't the data be wrong?  A 40 mph test might only be done at say 35 mph giving the vehicle a better outcome! Maybe this is the real reason why manufacturer's raise the speedo; to get better crash results! (I'm asking this with a grain of salt as I'm sure they use something to figure out how fast the car is going. What I really want to know is how off, if at all, is the car's speedo from different manufacturer's while doing their test speed?) |
| Reply » Dumb question about crash testing |
You think too much. Crash/safety ratings are all based on predetermined scenarios (which are subjective to some degree). Also, definitions of points referring to safety are all just that; definitions defined by the testers. These may differ between tests, between countries and between those who have commercial interests in the test outcomes.
All I know is BMW cars are safe. Are they the safest? Who knows. Are they relatively safe compared with many other makers? I guess so. Do they have the latest in safety devices and electronics? I guess so.
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| Reply » Dumb question about crash testing |
If you ever watch a crash test video, you'll notice that it's neither a human driver nor the crash test dummy controlling the speed by watching the speedo... 
On a serious note, the crash testers have a strong incentive to make the test results standardized and repeatable. All the used equipment like dummies, data loggers, high-speed cameras etc. is bloody expensive high-tech gear. So I'd expect the same from the winch system used to accelerate the test cars in the sense that it should be able to move the cable at an exactly predefined constant speed after the acceleration phase.
In other words, the car speedo readings are completely irrelevant during a crash test, as nobody/nothing is monitoring them.
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| Reply » Dumb question about crash testing |
i think they have a track that the car runs onto, if the track is set to 50km then it will pull the car along at 50km
Apparently if u hit a moving vechile, anything above 60km, not sure (somebody please correct me), you are considered dead and if u hit a stationary object (darn them trees and poles) at over 40km or 50km, u too my freind are considered as dead.
*somebody correct me on speed if they are wrong, my memory isnt all that good 
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| Reply » Dumb question about crash testing |
Ohh by da way gran turismo, ur 6 series is AWSOME!!!!!!!
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| Reply » Dumb question about crash testing |
Thanks mate!
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Dumb question about crash testing