Non-Pivoting Sun Visors

I got my SLK 350 earlier this month and I just love it, but it has one "feature" that's driving me nuts. Although the car came equipped with almost everything I wanted, it didn't have the Premium package. A couple of days after I bought the car, the sun finally came out and I discovered that the sun visors are fixed in position. That is, they will swivel up and down, but cannot pivot to the side. I have never seen that on any car I have ever driven (or even heard of). Although it is not mentioned (as best I can tell) in any of the SLK brochures, the normal, pivoting sun visors are only available in the SLK 350 if you get the Premium or AMG packages. The SLKs I saw in the dealer showroom all had the normal visors, so they must have had those packages. Has anyone else noticed this? It seems pretty cheesy for MB to effectively downgrade such a basic item as a sun visor in such an expensive car. Does anyone know if I can just order the parts for the other visors and install them myself? Any input would be greatly appreciated.

Gary

SLK 350, Automatic, Iridium Silver, Berry Red interior with Comfort, Lighting, Entertainment (with Nav), and Heating packages.