Every grand cali I have seen in Europe has this problem really poor build quality in my opinion and such a big issue to sort the worry I would have is the long term effectsFurther to my first post, mine does as pictured, it's been a hot week and van is in direct sun, I turned it around so the sun's on the sliding door side and that stopped it. I think it's just a case of the black vinyl getting hotter than the white panel and expanding more?
I thought about getting the top (around the windows) wrapped in silver or a lighter reflective colour.
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