My 400E is a USA car and had a sunroof in it when an oak limb fell on it and b/c of the $13k estimate to repair the damage, it was totalled. All four doors would still open, the sunroof would open 1/2 way, the winshield was cracked and the rear glass knocked out. I drove it home from the salvage auction!
I stripped the interior out and replaced the roof with a German OE roof without the sunroof cutout in it. Sunroofs are options in many countries as is AC, leather, stereo radios, etc.
Bottom line is it had a metal sunroof and now has none, less weight high up!

Tobias MB
3 MBs