My biggest issue is the 2.1x sec 60' times for the L99 Camaro SS.
The L99 A6 has a very aggressive 1st gear and 2.1x sec 60' time is really bad.
With decent skills behind the wheel, a stock L99 A6 will 1.9x sec 60' all day long.
That would have brought the 1/4 mile times down in the low 13s @ 105-107 range (which would be more typical for the conditions).
Mid 13s with a 500 ft DA is pretty slow for a stock L99 A6.
I've personally watched a bone stock L99 A6 run 13.3s @ 105 mph in 2500 ft DA (88 degrees with high humidity - summer in Florida).
But it is well known that many stock L99s desperately need a tune. We've seen some pretty slow stock L99s that badly needed tunes.
My L99 A6 (tune only) ran 12.90 @ 108/109 mph on a sunny mid 70s temp day.
Here's my tune only time slip (and take note of the 60' time). That's the 60' time L99s can pull stock with the right driver.