he Z06 arrived as a 2006 model in the third quarter of 2005. It had a new 7.0 L (7,008 cc/427.6 cu in) version of the Small-Block engine codenamed LS7, which produced 505 hp (376 kW). In addition to the larger engine, the Corvette Z06 has a dry sump oiling system, and connecting rods made out of titanium alloy. The frame of the Z06 is constructed from aluminum, saving 136 pounds over the standard steel frame. Other weight saving measures such as balsa wood/carbon fiber composite floors and a magnesium alloy engine cradle were used. For 2011 the Z06 carbon edition was introduced, which carries over multiple parts from the ZR1 including carbon ceramic brakes, active suspension, and other carbon fiber aerodynamic pieces. Most of these options can be ordered through the Z07 package on the Z06 except for the carbon edition specific hood. Only 500 Z06 Carbon Editions will be made. The Z06 officially weighed 3180 lb (1421 kg), giving it a weight to power ratio of 6.3 lb/hp (3.8 kg/kW), allowing it to achieve a fuel economy of 15 mpg-US (16 L/100 km; 18 mpg-imp) in the city and 24 mpg-US (9.8 L/100 km; 29 mpg-imp) on the highway.[8] The Z06 was the official pace car for both the 2006 Daytona 500 and the Indianapolis 500 race. Car and Driver recorded a 0-60 mph time of 3.6 seconds and 1/4 mile in 11.8 seconds at 122 mph in a March 2007
