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Originally Posted by rpm Now, this wouldn’t conclusively answer what the safety rating of the Indian i20 would be per se, but it would be interesting to see the similarities/differences (if any). |
Well, it's not exactly the best idea - even with similar steels there can be differences in performance, for a lot of reasons. The most obvious of them would be engine intrusion for different engines and excessive pedal displacement for which the specific market car will have to be separately engineered.
What's not so obvious is differences in the quality of welds - and there's absolutely no way to figure out without access to solid crash test intrusion measurements, or otherwise by stripping the car (even then it's only possible to check for density and not strength). And that would obviously upset the Hyundai dealer here

. Spot-welding is a time-consuming and expensive process, and manufacturers often use lower quality welds for certain markets - either less dense welds or less time or discharge voltage. A release of spot welds, either intentional to save cost/time or due to poor production control can lead to intrusion, or even rupture of footwell seams (look at
this interesting test for example).
About the BIW diagrams - they're certainly a very interesting read. But we still don't know for sure whether they explain the differences in crash test performance, though in some cases it's very likely. All cases of different BIW parts have led to differences in crash test results too - but we can't say at all that having the same body-in-white will lead to similar crash test results, not least because of the right hand-drive nature of our market. That said, diagrams for the i20 would certainly be interesting to see. The closest I could get is a very vague diagram of the related
European Hyundai Bayon in the Euro Rescue app.
Between the Tata Altroz and the Hyundai i20 - personally I would think it's a tough choice. The Altroz has a 2020 five star Global NCAP crash test rating - and hence is also confirmed to meet UN regulation for side impact which is something I would personally consider quite valuable. The i20 on the other hand doesn't have a crash test rating
yet, but what might swing things in its favour are optional side torso airbags, side head protection, and very importantly, ESC. You're leaning towards a 'safe' car, and while there is no such thing, either of these (a crash test rating or ESC+head protection) will definitely help you make a safer choice. It's really up to you to decide which one you'd consider more important.
If you could, I would suggest that you wait if you're considering the Altroz. While there's absolutely no guarantee of this, and it's purely speculation on my part, there is a small chance you might see Tata equip more of its fleet with ESC and/or side head protection airbags in order to meet the updated mid-2022 Global NCAP protocol. So in that case you'd probably be getting the best of both worlds.
I would normally suggest the Volkswagen Polo too, but I'm not even sure if it's still in production, and nevertheless it's widely regarded that it violates this point:
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Originally Posted by vigneshkumar31 Features- We hold cars for long . Future proof features which would help us hold the car longer and not go out of date in 3 years are vital. |
Also, I know you're open to a manual gearshift, but since this will primarily be a city car, I would strongly suggest an automatic gearbox. I don't think you'll regret it. I've seen even the most staunch supporters of manual transmissions now swearing by automatics for city use.