I would not be surprised if the ACR is faster than the ZR1 as much as I hate to admit it. I wish the Corvette people would have put a C6R esque body kit on it to create some substantial downforce. They should at least make it an option for the really hardcore people. I know that if I had enough money to buy a ZR1 that is what I would do.
At least we know the ZR1 will go and stop just fine.