Look closely and you will see a good scuff mark under the fog light.
Here you can see the Gurney Lip. It is tough to see, but it is the black plastic in front of the wheel.
Here you can see that the Z06 is a front breather instead of a bottom breather like the base C6.
Here is a close up of the damage on the car. Look close in the middle and see that the front lip is scuffed and there are scrape marks on the paint under the fog light.