Recent discussion in these pages about a supposed sixth Grand Sport racing Corvette rang two bells with me. First, I can confirm at least part of the story. Zora Duntov himself once told me that heโd built an extra GS, in secret, for Chevrolet engineers to play with.
But he orderedโno other verb for itโthat I not talk about it. He meant to hold the revelation for a book he was planning. As I was involved in the plan at the time, I acquiesced.