SO the rumor is that what has been thought to be the C7 ZR1 mule is actually a track focused Z06 much like the Viper ACR, Porsche RS or even the C6 Z06X concept from 2011. The aero just looks way too agressive to follow the ZR1 lineage. I just ran across these pics a buddy took from the Woodward dream cruise. This would be absolutely sick.
Pics of mule:
Pics of mule: