Become a premium member for just $35/year and get ad-free access!
The Zagato company took a C7 Corvette Z06 and transformed it into the IsoRivolta GTZ, a "spiritual descendant" of the Iso Grifo A3/C (Corsa).  The original A3/C race car was developed by Giotto Bizzarrini not long after he left Ferrari, where he had served as cheif engineer behind the 250 GTO, which is revered as the world's most expensive car.  Bizzarrini purportedly fancied the A3/C as his "own personal evolution of (and improvement upon) the GTO design."
The C7 Z06 enters supercar territory with race-proven design, advanced technologies and world-class performance. With track-focused Z07 performance package, 2015 Corvette Z06 delivers faster lap times than 2013 Corvette ZR1. It is the first Corvette Z06 to offer supercharged engine, paddle-shift automatic transmission and removable roof panel for coupes, and convertible model. New LT4 supercharged 6.2L V-8 SAE-certified at 650 hp and 650 lb-ft of torque.
The first Z06 was actually an option package first offered with the 1963 Corvette. The package was developed by Corvette's legendary lead engineer and racing advocate Z0ra Arkus-Duntov.  The Z06 option was designed to allow consumers to bolster the 1963 "Split-Window" Corvettes performance and handling capabilities for use on the race track. Selecting regular production option (RPO) Z06 when ordering a Corvette resulted in a car equipped with some tasty options.