Need help. Need this Photoshopped

[Nasadus]

Two years ago i bought some new rims for my car and i kind of got bored with the colour and would like to have them re-painted in something else. But first i would like to see what the new colour would look like eventually before i commit to painting. Right now they are painted in gunmetal but i would like to see what they would look like in Silver or in Black (or something better maybe?), unfortunately my photoshop skills are extremely limited and i have no idea how to accomplish this. That's why i'm asking for help here and i hope that someone sees this and can do this for me.

 

[NINE_HUNDRED]

I can give it a go for you.

Edit: My attempt at the black..

Silver'ish..

 

[Schwartz]

The link is broken...

 

[Nasadus]

I can give it a go for you.

Edit: My attempt at the black..

Silver'ish..

Thanks alot. That looks really good. As of now i'm leaning with silver. It gives a better contrast and in my opinion looks better on the car. Thanks again.