I posted a thread about sunroofs a few months ago, one reader suggested that an aftermarket roof would reduce safety - I'm not an expert but my gut feeling is to disagree!
Any sunroof over the front of the car will be slotted between the cross members that give the vehicle structural rigidity - so there is no reason to suspect this rigidity would be lessened by the removal of a sheet of thin metal and be replaced by a pane glass. Of course perhaps the glass itself might shatter, but this would not reduce the structural integrity of the vehicle. Likewise for an opening roof, be it glass or metal.
Exceptions - I can think of two.
Firstly, a panoramic sunroof spanning the whole length of the car. I've not seen any crash test results, but by fitting the glass the whole length the cross members will not be present - so this I would expect to reduce structural rigidity,especially if the glass does break (where would the shards go, onto the passengers??)
The second option would be for a full length fabric roof.
If this matter worries you perhaps look at the ENCAP test results for vehicles with and without sunroofs, if such comparisons exist.
For the record I have a sunroof, have had such for almost my full driving life (30+ years) it was open twice today (commute to and home from work) and will not buy a car without either a factory fit or aftermarket option for sunroof - let the sun shine in!
Edited by Smileyman on 05/07/2016 at 21:22
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