My bone stock 2018 ZL1 with the A10 ran an 11.2 @ 125 MPH on the factory tires (20" Goodyear Eagle F1 Supercar 3) in 1700' density altitude (DA) with a 1.72 60' time. Stephen's time at a great DA and on street slicks with a sub 1.7 60' time makes sense. Northeast track in the tail end of winter.
Everyone can argue if it should have run those times, but it did.