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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 Z06 arrived for the 2006 model year as a homologation vehicle in the third quarter of 2005 and is the lightest of all Corvette models. The Z06 was equipped with the largest-displacement small-block engine ever produced, a new 7,011 cc (7.0 L; 427.8 cu in) V8 engine codenamed the LS7. The engine has a power output of 505 hp and 470 lb⋅ft.
The 427 Limited Edition option, code Q8A and Z44, was limited to 505 examples globally with 427 destined for North American customers. As a retirement gift to Wil Cooksey, the Corvette plant manager from 1993 to 2008, he chose the color scheme and hand signed and numbered the underside of the armrest console lids on all 505 examples in which this example is #6. As part of the package, the seats and the floor mats have “427” embroidery, and the center-console trim plate is color matched.