Yes dealer told me (doesn't mean its true though) that the pano roof glass is slightly tinted and provides some UV protection.

The two reasons why we tinted:

1. Too much heat getting through.
2. With the cover closed I felt boxed in, felt like the roof was lower, especially with the black headliner that comes with the M-Sport.

So tinting has reduced the heat, and because the cover can now be left open, we get natural light and great views through the pano roof, providing that expansive feel to the interior.

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2009 e70 X5 30d MY10
Innovations | MSport | Carbon Black | Black Nevada | Aluminium Trim | 20" 227M | Panoramic Roof | Rear Side Sunblinds | 6NF | 3rd Row | Self-levelling Suspension | 35% Tint