The wheels were meant for the Magnum and look great as they show off the red Brembo calipers with all the open space. The 300's wheels would look lame on the Magnum, just like the Mags look lame on the 300.
Well, unless you spark up those dark calipers by changing them to the red ones. Then it would fire it up.
They'd also look hot on an Inferno Red 300C SRT8. But you'd have to paint one.
What you don't see in the pictures is how they're painted. Pictures do them no justice, there's a nice metallic grey paint inside the spokes, that really highlights the polished faces.