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Roof Strength Test- Marginal?

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Old 12-03-10, 04:42 AM   #1
Lex450h
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Default Roof Strength Test- Marginal?

Hey,

I just picked up my loaded GSh yesterday and did some reading online about my new car.

I checked out the IIHS website and was pleased to find that the GS was the best pick for 2006 (frontal), Good for the side-impact test and Acceptable for the roof strength test. Reading the sub-text, I found that the score (for the roof strength test) did not apply to the GS Hybrid and that the Hybrid was a Marginal in that category.

I'm sure that the car will still do fine in the event of a roll-over, but was wondering why the Hybrid would fare worse than the standard GSes. Is it due to the extra weight of the battery? I didn't imagine the battery would be that heavy- I found that acceleration cornering between the GS460 and my GSh was just about the same (although, to be fair, my h has the Active Power Stabilizer Suspension System -APSSS- option and the 460 I tested did not).

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Old 12-04-10, 08:24 AM   #2
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Nobody knows?
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Old 12-04-10, 09:27 AM   #3
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well based on the website's description, it's based on a strength-to-weight ratio. in order for a GSh to have acceptable rating like the regular GS, you would need to strengthen the roof. because all GS (including hybrid) share the same roof frame/structure, of course the GSh will fail this test due to the extra weight of the hybrid powertrain/battery.
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Old 12-05-10, 09:23 AM   #4
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It has to be noted that the structural rigidity of Lexus cars is not great in general when compared to BMW or Mercedes. You notice a lot more chassis flex when driving aggressively, tossing the car into corners, and riding rough roads.
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Old 12-06-10, 01:41 AM   #5
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I see. Thanks for your insight!
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Old 12-06-10, 02:31 AM   #6
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Quote:
Originally Posted by batman75 View Post
It has to be noted that the structural rigidity of Lexus cars is not great in general when compared to BMW or Mercedes. You notice a lot more chassis flex when driving aggressively, tossing the car into corners, and riding rough roads.

you don't even need to drive aggressively.

just go over a speed bump diagonally, and you might hear the A-pillar snap.
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Old 12-07-10, 08:41 AM   #7
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Doesn't worry me. I totaled a 2GS and me and 3 other people walked out with hardly a scratch. One of the reasons I bought a 3GS, I am confident they build very safe vehicles.

Lexus vehicles are extremely safe and fare well in crash tests and we have hardly seen any significant safety issues.
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Old 12-10-10, 03:26 PM   #8
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just put a roll cage in
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Old 12-10-10, 03:26 PM
 
 
 
 
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2009, 350, 460, hybrid, iihs, insight, lexus, lexus gs, ls, marginal, roof, roof strength test, roofs, rx, strength, test, whats

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