GM tends to quote the average performance for their vehicle so a 0-60 in 3.9 seconds (shouldn't be the faster or the slowest) and 12 seconds in the quarter we should get ready to be impressed by some of these testers.
The Z06 had a 3.7 seconds 0-60 rating and its gotten there as fast as 3.4 seconds in the hands of some testers.
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