Panoramic roofs

Author
Discussion

entropy

Original Poster:

5,437 posts

203 months

Monday 30th September 2013
quotequote all
I was just wondoring how safe are they considering there are c**ts out who think its fun to lob bricks and what not from bridges.

vikingaero

10,333 posts

169 months

Monday 30th September 2013
quotequote all
They'll be laminated.

But equally they'll be slightly less safe than a steel roof which is why a lot of cars that have panaramic roofs have plus versions of ESP/VSC - basically earlier intervention.

kambites

67,564 posts

221 months

Monday 30th September 2013
quotequote all
You'd be surprised how strong toughened, laminated glass can be. I don't know, but I wouldn't be entirely surprised if modern windscreen glass is more puncture-resistant than the sheet steel they use to make normal car roofs.

hairyben

8,516 posts

183 months

Monday 30th September 2013
quotequote all
i'd have thought worst-case-scenario in terms of force of impact would be driving into the brick with the windshield at motorway speed.

mygoldfishbowl

3,701 posts

143 months

Monday 30th September 2013
quotequote all
Safer than a convertible I should think but why worry about things that have such a tiny chance of happening, probably got more chance of winning the lottery than being hit by a brick from a bridge.

Vladimir

6,917 posts

158 months

Monday 30th September 2013
quotequote all
We have one and love it. Loads of light and it's huge. A major benefit is that bird muck isn't a problem on glass. When most of your roof is made of the stuff, living in seagull cr4p Central isn't so bad!

I'd say it looks pretty tough.

thescamper

920 posts

226 months

Tuesday 1st October 2013
quotequote all
Colleague at work has a peugeot of some sort with one, he has had to have two replaced due to debris damage, insurance paid for the first under his glass warranty but only after a long fight, but they refused point blank on the second after amending his policy.

Only advice i would give is check your insurance covers it.

Ari

19,347 posts

215 months

Tuesday 1st October 2013
quotequote all
vikingaero said:
They'll be laminated.

But equally they'll be slightly less safe than a steel roof which is why a lot of cars that have panaramic roofs have plus versions of ESP/VSC - basically earlier intervention.
Really? Are you sure?

Why would a manufacturer want to make one version of a car slightly safer than another because it has a glass roof? Why not give all versions of the car the safer system?




BlueMeganeII

338 posts

159 months

Tuesday 1st October 2013
quotequote all
I've had panoramic roofs on loads of cars, and I've read a number of stories of the roofs shattering/exploding suddenly into tiny pieces. Would they not act like this if something was thrown at them in high speed? Plus live leak shows than a brick falling off the back of a truck will happily go through a laminated windscreen with no issues so perhaps the roof would be the same, all be it at a shallower angle.

530dTPhil

1,377 posts

218 months

Tuesday 1st October 2013
quotequote all
Panoramic roofs which are bonded to the car structure are invariably laminated glass and will therefore not shatter and break into tiny pieces. Moveable glass panels in the roof are usually, but not always, toughened glass, just like most side glasses. These will shatter if impacted by a sharp object.

We are replacing an increasing number of panoramic roof panels as a result of simple stone impact damage. They are labour intensive in many cases and the panel is very costly to buy, in some instances well over £1K before fitting.
Most insurers currently cover this under the replacement glass clause but I wouldn't be surprised to see it moved under accident damage with a higher excess or even excluded from some types of policy.

vikingaero

10,333 posts

169 months

Tuesday 1st October 2013
quotequote all
Ari said:
Really? Are you sure?

Why would a manufacturer want to make one version of a car slightly safer than another because it has a glass roof? Why not give all versions of the car the safer system?
I think over the last two years I've bought about 20 cars for the business. On reading the specs of 2 of them in the brochure it specifically stated that the panoramic roof had to be optioned with ESP+. One I remember definitely is the Nissan Cashcow. I've read a brochure of an Audi Q model that has ESP which takes into account or has roof rack detection and adjusts the settings accordingly.

dazwalsh

6,095 posts

141 months

Tuesday 1st October 2013
quotequote all
i once bought a peugeot 407SW with a panoramic roof for such a low price (due to crack in corner of panoramic roof)and then realised why it was so cheap when i was quoted 1300 to replace the panel. I just stuck some clear silicone over the crack so it wouldnt leak and left it alone. They are brilliant though and flood the cabin with light, deffo worth the money i reckon.




dazwalsh

6,095 posts

141 months

Tuesday 1st October 2013
quotequote all
i once bought a peugeot 407SW with a panoramic roof for such a low price (due to crack in corner of panoramic roof)and then realised why it was so cheap when i was quoted 1300 to replace the panel. I just stuck some clear silicone over the crack so it wouldnt leak and left it alone. They are brilliant though and flood the cabin with light, deffo worth the money i reckon.




dazwalsh

6,095 posts

141 months

Tuesday 1st October 2013
quotequote all
i once bought a peugeot 407SW with a panoramic roof for such a low price (due to crack in corner of panoramic roof)and then realised why it was so cheap when i was quoted 1300 to replace the panel. I just stuck some clear silicone over the crack so it wouldnt leak and left it alone. They are brilliant though and flood the cabin with light, deffo worth the money i reckon.




Vladimir

6,917 posts

158 months

Tuesday 1st October 2013
quotequote all
Little did I know that my lovely sunroof was actually a potentially deadly frag grenade waiting to happen...

Devil2575

13,400 posts

188 months

Tuesday 1st October 2013
quotequote all
entropy said:
I was just wondoring how safe are they considering there are c**ts out who think its fun to lob bricks and what not from bridges.
How many times has your car been hit by a brick lobbed from a bridge?

Is this scenario really a criteria that you would judge a cars safety based on? The ability of the roof to survive an impact from a brick thrown from a bridge.

While it does happen it is very rare.

DocArbathnot

27,016 posts

183 months

Tuesday 1st October 2013
quotequote all
vikingaero said:
Ari said:
Really? Are you sure?

Why would a manufacturer want to make one version of a car slightly safer than another because it has a glass roof? Why not give all versions of the car the safer system?
I think over the last two years I've bought about 20 cars for the business. On reading the specs of 2 of them in the brochure it specifically stated that the panoramic roof had to be optioned with ESP+. One I remember definitely is the Nissan Cashcow. I've read a brochure of an Audi Q model that has ESP which takes into account or has roof rack detection and adjusts the settings accordingly.
It's because they are heavy and alter the COG. You cannot order an Audi Q7 with certain options combined (Pan roof is one of them) because it would make it too heavy to qualify as a passenger car.

HowMuchLonger

3,004 posts

193 months

Tuesday 1st October 2013
quotequote all
DocArbathnot said:
You cannot order an Audi Q7 with certain options combined (Pan roof is one of them) because it would make it too heavy to qualify as a passenger car.
I doubt this is actually true. Seeing as the unladen weight of the Q7 is about 300kg less than that of the old RR.

Vladimir

6,917 posts

158 months

Tuesday 1st October 2013
quotequote all
Some option combinations appear to be made up.
I couldn't spec front parking sensors on my VW California because...it has the 4WD option...!

RDMcG

19,142 posts

207 months

Tuesday 1st October 2013
quotequote all
My old SL500 has a panoramic roof (and an automatically deploying rollbar) - has given zero trouble since new and is a very pleasant environment.