Despite the recent unveiling of the new Corvette ZR1, Chevrolet is having difficulty selling its seventh-generation Corvette. How much difficulty, exactly? According to MSN Money, only 1,345 Corvettes were sold in October. That's a 49 percent drop from the previous October. Overall, sales are off by a troubling 20 percent for the first ten months of 2017, and the year is quickly coming to an end. What to do? Discounts. Even the Corvette Z06 is being discounted.