kyheng said:
I don't know on this, but euro spec cars and asian spec cars got 1 big diff between them, where safety for Euro will be put on first and Asian will put on last. When taking this into consideration, will you think lighter is better? I also know that now all the cars have alot of so-called 'bones' inside a car. But what if you involved in an accident where you hit a light post on the center of your car bonet which the bones is not there? If you got a chance to have knock on all the cars, if can between Eoru spec and Asain spec, I think maybe you will change your statement. The best example, Proton, export models the metal used is heavier than our own use. On top of that they add an impact bar on the door where our own use has nothing. This same goes to other cars, they will have Euro and Asian spec. So why are the Euro spec will always more expensive and Asian spec are slightly cheaper?
I don't why you want to show this movie. But with that type of impact, yes the car is still there, but what about the driver? If you can notice the bottom part after the impact. If he still can survive also, he will still lost his lower body. If compare to the older car that use metal only, the driver and passanger still will have the chance to live, the most will have serious injuries but still can walk after that. What for want a car that can stand high hit impact where the driver cannot drive a car after that?
sorry for my harsh statement, but i have to let you know there's something called crumple zone, in which the frontal end of the car as well as the backend of the car was designed to absorb impact 'G' forces while a car rams something in a considerable speed, or force. These designs were made so that during an impact, the excruciating forces of these impacts were absorb by the crumpling front ends, and the way they crumple, were designed to be so. Many hidden designs of our cars lies beneath the "knocking surface of yours" the places where you "knock" the cars, doesn't determine whether you're safe or not, it is however the "bones" that he had aforementioned, or i would say "chassis" or "sub frame" the determines how well you are protected. Our car's front end was designed to "bengkak" or crumple in an accident, first is due that there weren't much to protect the frontal end, besides fragile radiators, alternators, coolant tanks, aircon fan and such; thats why there are many people who always brag about how the Wira that hit their Corolla's butt, and that the Wira's front sustain heavy damage whereas the rear part of Corolla had only a dented bumper, its not because Wira is made of considerably lower quality of materials, infact, put the two cars the other way round, same thing will happen to the Toyota. The most important part of a car that determines the safety of you and your family, is the frame between 'A' pillars to 'C' pillars, this is what Toyota's always bragged about their GOA bodies. The design of this cage, or the safety of it, cannot be determined by simple knocking on the surface of the 'cage' in which the surface only determines how the car will look. I'll give you an example of the 'surface' i meant, and the 'cage' i meant, Honda Jazz, had the same 'cage' as the Honda City, but with different 'surfaces'
On top of that, Proton, no matter export or local, does have a side impact bar hidden within the doors. Knock it off (a harder knock i supposed) and you can see it. :)
The video he showed you, is the Smart. A car manufactured by Mercedes in cooperation with Swatch. This is a very small car, almost smallest by all means. and a very light car (the 'light' that you deemed NOT SAFE). The video shows the car travelling at 100km/h and hit straight into a concrete barrier, and the Tridion structure remains as sturdy as it is. This means that the human inside the car will not be hard pressed to death by all the machineries in the frontal end, and upon the impact, the doors can still be opened, this shows that it is an extremely safe car. it shows that the passenger cell is still protecting the passengers. And anyone with a tad more knowledge on cars would've been stunned by the results of that video, this is because most crash tests, namely the highly reknowned Euro NCAP crash test, tests frontal direct impacts with a mere 54km/h, and they did not crash the car into a CONCRETE BARRIER, the car was onyl subjected to an object simulating the effects of another car's frontal ends, which means the barrier they used in EURO NCAP, is something that absorbs impacts as well, and MANY cars failed badly in that test, namely our Waja. Imagine a car hitting full force onto a 20 ton concrete barrier (which in 100% chances, would have deflect all the force back to the car) would've been collaterally damaged. That video is a strong proof to people like you that, lighter cars doesnt have to be more deadly. Infact, a badly designed car (the subframe, not the outer layer you knocked on) will definitely crumpled itself in an uncontrollable way and hence, killed the passenger.
Of course, i agree with you that a heavier car does have advantage hitting a lighter car, the force of momentum that was carried by the marginally bigger car will do more damage to the smaller car, but how would've you know you, the passenger inside the 'bigger' car, is safe at all? the passenger of that Smart, would've walked away alive with a badly damaged car, but you, could've been dead in your slightly dented car.
Most passengers that died of crashes died because they were hit on by the crumpling in of engines, pedals, and if there seatbelts doesn't have pre-tensioners, their body would've been subjected to such high G-forces where the passenger's internal organs were slammed onto his rib cages, and hence internal bleeding. These kind of injuries are caused by the car's inability to absorb the 'G' forces that the car was subjected to. And besides the number of air bags, seatbelts, crumple zones, preventive measures of a car is also a good way of avoiding accidents, take Citroen's latest C4 as example, when a driver felt drowsy, and drifts from his current lane to another lane, which is a dangerous act as motorists from behind or sideways would not have anticipated such a move, the seats will flap his whichever thighs if he were to drift to whichever side of lanes. Such pre-emptive measures save thousands of lives rather than airbags or crumple zones.
Hence, all i wanna share to you is, a safety of a car cannot be measured by the aforementioned as you have shared with us. I think i'm someone who cares about cars and definitely a car enthusiast who would've taken so much of my time to explain all these to whoever people here, because i care about cars, and more to people who make the right decision in buying one.