My 2016 2SS convertible A8..... GM published numbers.....12.5@115mph and 4.2 0-60 for SS automatic convertible.....
My ZL1 A10 with a mild launch and run..... GM numbers of 3.5 0-60 and 11.4@127mph for ZL1 A10..... much more available.... definitely .5 seconds more to lose on both.....if not .75 to a full second on full power run in the 1/4.....