What car did Chevy make to combat ac cobra?

Chevrolet didn't make a single specific car to directly combat the AC Cobra. The Cobra's impact was felt across the market, leading to a general performance arms race. However, Chevrolet's response was more of a multi-pronged approach involving several models, most notably the Chevrolet Corvette. Throughout the Cobra's production years, various Corvette generations (especially the C2 Sting Ray) were developed and improved to compete in terms of performance and handling. There wasn't a single "Cobra killer" but rather a continuous evolution of the Corvette aimed at maintaining competitiveness in the high-performance sports car market.