Quote:
Originally Posted by saket77 Even when the cars are crash tested, the methodology involves crashing it against an identical weight block with a 60-40 offset |
Yes you're correct there, as far as Euro-NCAP & most other NCAP's go. However there is one more stringent form of safety testing conducted by American IIHS-HLDI which has cars offset at 40:60 or from what I can see, 30:70 towards a solid, immovable concrete wall. By doing this they measure how a vehicle will hold up when inevitably heading towards an immovable object.
By the weight against weight logic, this has to possibly be the worst that can happen since the point of impact has full-resistance and limitless weight. Most of the vehicles are crash tested in this overlap method to find out what would happen should the worst happen. Let me give examples with visual aids to elaborate on what I understood.
1:
This is the Fiat 500, a good example due to its particularly small size. As one can see the body itself held on great against such impact, the wheel also does not slice into the compartment and crumbles before such an incident happens which is the best thing one can ask for. However the dashboard intrusion is a bit severe as the steering column itself bends rightwards taking the airbags away from the driver. Official result : Poor. Personal opinion : for its bonnet size it did just fine.
2:
The Chevy Beat did a good job, wheels didn't shear into the cabin, airbags deployed as planned & while there was a fair movement of the steering column, it held on the best way it could. Official result : Acceptable. Personal opinion : the body frame crumpled compared to the Fiat 500, I don't see how it got a better score. Fiat surely held on far better.
3.
The Hyundai Genesis did a great job, as one can see the passenger frame is undisturbed, the wheels didn't shear into the cabin & the steering column remained 90 deg straight for the airbag to cushion the driver dead centre. The Hyundai Accent/Verna & Kia Soul though failed the test miserably (2013 models) due to frame/dashboard instability. Rest of Kia models did well and in most cases better than Hyundai.
4.
This is everything that can & will go wrong if the structure isn't stable.. the frame is disturbed, the rims shear into the cabin, the door is smashed open & the steering column SRS completely misses the driver leading to heavy whiplash.
5.
The Jetta also did a great job in terms of keeping itself stable from the crash, however even though they gave it a "Good" rating it was pointed out later that the rims shearing into the door panel is not a good thing & can cause heavy leg injuries if the design isn't altered. Great safe car nonetheless. From what I can see the dashboard also didn't keep itself stable as the airbag misses the driver almost entirely.
I can post many more videos, but I hope all of you can get what the main point is, there are models across every manufacturer that got poor ratings and then those that got good ratings. From what I can see BMW leads the pack in overall safety of all models followed by Mercedes. Audi had one failure in the A4 (2013 model) where the front door flew open and the rims cut into the cabin, rest managed 'Good' rating. Mercedes too had a failure in the 2013 C Class where the front more or less folded like a deck of cards and the driver (dummy) head almost hit the A pillar. Even Ford's luxury brand Lincoln did very poorly w.r.t certain models between 13/14. Toyota's bigger SUV's did well but its smaller Yaris possibly had the worst performance with the dummy almost flying out of the door.
As I've said before, defending brands maybe natural for people here but its also essential to look at a manufacturer for what they are and make them change. Let's also stop the "ALL of models of brand X are safe while ALL the models of brand Y are unsafe". If anyone simply views a few videos of NCAP or IIHS tests they will know for sure that each brand has their safely-built models which pass all tests with flying colours, while some brands known for safety have very unsafe vehicles as well in the mix.
Lets not take things personally when safety of a model is in doubt, lets instead look at it objectively from the model point of view rather than tarnish/praise the brand that built it. As far as India goes there is no saying how much a manufacturer will tweak/edit/subtract from the locally sold vehicle even if they are manufacturing for the global market. Since Fiat has only 2 models in India, i.e the Punto & Linea I'd give them the honours of making 100% structurally 'sound' models for India.