"I want to buy a Citroen C4 Picasso and I have a dilemma about the panoramic glass roof. After talking to friends and visit forums, many people said it is important the temperature rise during the summer months inside the car, despite being able to cover it."

"Other problem that arises is that of the security, because they say that if accident the cars with panoramic ceiling worst off. What is your opinion? Is it advisable to incorporate?

Response from our technical expert Luis Miguel Vitoria

First of all we have to talk to you about a personal impression. During the warmer dates of this summer We’ve driven the same vehicle with the option panoramic sunroof. True, with the folded curtain, the strength of the sun can slightly warm our scalp, whoever has it.

What is the rest of cabin, It would only be upset if we leave the car parked for a while. In that circumstance, indeed the passenger compartment heating if it could be somewhat higher than with a metal roof. But in this situation, the use of a system air conditioning as possessing the Citroën C4 Picasso It is more than enough to quickly return the temperature to a comfortable level.

Note that the ceiling this tinting and also the area where you live not characterized by solar activity far more than a few weeks of the year. On this side, we do not think it’s a hassle considering incorporating the sunroof.

With regard to the question of security, we can only refer to information extracted persons belonging to the manufacturer with whom we have exchanged views. According to them, rigidity a roof in which it inserts a piece from crystal It is higher than an integral metal. We assume that refers to a torsional rigidity. And if you think, though shocking, has its reason, since the thickness of the glass is much higher than the sheet metal it replaces. Also, anchoring systems sunroof supplement their resistance to be twisted. Yes, the problem could come from an accident in which the sunroof is broken, for example, because of a upset and the possible action of an aggressive element on the glass. Hence, we could raise a doubt that if it would become more brittle than steel and, in a hypothetical second round bell, inside of the cabin I was defenseless against the aggressive introduction of any object through space where it was before the panoramic ceiling. Being aware of the deep safety studies performed by manufacturers and proliferation of these ceilings, there seems to be a particular problem in that circumstance.