Tints over here are a lot heavier and legally allowed to be due to the more intense sun. My Subaru has the darkest legal here which is a film but that is too dark really at night when I reverse down my driveway so I have to put the window down.
Is it a legitimate import or a gray import? If it was legitimate, I would have thought the required design rules for the UK would have been adhered to.
They are very strict here about design rules on cars.