"Bob Lutz, GM’s retired vice chairman of product development, says he rejected plans for an earlier introduction that included low-cost proposals for only modest changes. He preferred to wait until GM had the cash to build a car that would make a Corvette owner want to trade up.
Lutz is reported to have said that “it’s a much bolder and more dramatic design,” in a telephone interview. Additionally, Lutz says that "the new car will also surpass the fuel economy and performance of today’s car in all respects.”
Separately, Welch also wrote that there are "hints of Ferrari styling in the next Corvette, which will depart from the traditional looks of the last two generations, a person familiar with the design work said."