I've seen a new silver Z06 twice now. Once on Telegraph and Long Lake and the second time a few days later on Inkster and Lone Pine (probably same car). Car was driven by a female. I got a good look at it the first time when it was parked. The tires were 325's. It looked real good!
I've seen them like 20 times by now. They really stand out on the road. I guess it helps to work at the ren cen. There's a sweet orange one that parks right by me every day.