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.