[Big Dave]

I just ordered some of these for my P71 Crown Vic. 17" OEM steelies.

The Dzus is considered better for street use as the clips reduce the bending load on the covers while cornering. While more expensive, they are still cheap compared to fancy alloy wheels.

Moon does (repeat DOES) offer a Dzus cover kits for alloy wheels, but they recommend you measure the various contour radii and consult with Moon. Apparently alloy wheels vary a lot.

For me, this is mostly an appearance decision. I've never seen any Moons on the road around here, so the car will be distinctive.

After I see what they look like, I may talk to my body man. Maybe he can make some custom skirts.