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      11-19-2012, 10:10 PM   #21
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bigjae1976's Avatar

Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Wichita, KS

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2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Originally Posted by Zoli007 View Post
I have heard several times to not put in fixed back seats in a car which does not have a roll bar.

In the unlikely event you roll over and the roof caves, your spine is the one absorbing the hit. On seats that have a recliner, the recline mechanism can give way and not allow you to become moosh.
I don't believe that. Not an expert but if the roof caves in that much then I have other things to worry about. Plus, you submarine in the seat a little bit too I think. I wouldn't really count on a seat collapsing to save my skull from getting crushed.

I've also heard the top of the seat shouldn't be higher than your head. I think Porsche may put fixed backs in their 911 as an option but I'm not sure. Other exotics to do it, don't they also need to meet US safety standards?
2015 F34 328iX GT Glacier Silver
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red