I have a cocoa interior and to be honest you don't even notice the black colour of the alcantara rooflining or even the sun visors - they just look like they are in the shade (which they are). I agree that the visors are plasticky and tacky and that leather covered ones would be better, though.

I think the more useful leather extras are the rear centre console etc which I didn't get but regret not doing so, and (getting a bit OT here) of course -20mm suspension which I regret every day, even though I still love the car as it is...

Good luck with your purchase.

SoS