Matte vinyl just for the roof on space gray?
 

I just got that idea, so not sure if it's good.
To put matte black vinyl only on the roof of my space gray E60.

If someone has done it, please show pictures.
But the main reason for the thread is to get recommendations on quality vinyl and to understand how long it will look decent?
(I'm parking outdoors in a 4 seasons climate country)