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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 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."
For only the second time in Chevrolet history, a Corvette is now available in a Drivers Series special edition. Actually, there’s four, all Grand Sports designed in collaboration with Corvette Racing team drivers Milner, Gavin, Magnussen and Garcia. The idea came from Chevrolet exterior design manager Kirk Bennion, a racing fan who was also at the Rolex 24, according to Corvette Marketing Manager Todd Christensen. Four Drivers Series special editions is definitely more fun than one.