Originally Posted by Lgndryhr
Thanks for the link to the video! I don't think that was the ZL1 in the video. The side looked like it had the Indy 500 logo. Is it the Indy 500 pace car?
Now the pictures posted above at the end of the OP's post could be the ZL1.
More than likely its a SS that received updated parts from the ZL1 for drivetrain testing.