<P> With an automatic transmission, the Corvette achieves 15 mpg (16 L / 100 km; 18 mpg) / 25 mpg (9.4 L / 100 km; 30 mpg) mpg (city / highway); the manual - transmission model gets 16 mpg (15 L / 100 km; 19 mpg) / 26 mpg (9.0 L / 100 km; 31 mpg) mpg . The Corvette's manual transmission is fitted with Computer Aided Gear Shifting (CAGS), obligating the driver to shift from 1st directly to 4th when operating at lower RPM . This boosts the EPA's derived fuel economy thus allowing the buyer to avoid paying the "gas guzzler" tax . GM badges were added to the car in 2006 . </P> <P> Beginning with the 2008 model year, the Corvette received a new engine, the LS3 . With displacement increased to 6.2 liters (376 cu in; 6162 cc), power was increased to 430 hp (321 kW) at 6500 rpm and 424 lb ⋅ ft (575 N ⋅ m) of torque at 4600 rpm, or 436 hp (325 kW) and 428 lb ⋅ ft (580 N ⋅ m) with the optional vacuum actuated valve exhaust . The previous Tremec T56 transmission on manual Corvettes was replaced with a new version, the TR6060, in model year 2008 . Manual Corvettes have improved shift linkage; the automatic model is set up for quicker shifts, and (according to Chevrolet) goes from 0 to 60 mph in 4.0 seconds, faster than any other production automatic Corvette . From 2008 onward, steering was revised for improved feel and the wheels were updated to a new five - spoke design . The last Corvette C6, a white 427 convertible, was completed on February 28, 2013 . </P> <P> The Z06 arrived as a 2006 model 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) engine codenamed LS7 produced 505 bhp (512 PS; 377 kW) @ 6300 rpm and 470 lb ⋅ ft (637 N ⋅ m) @ 4800 rpm of torque, is the most powerful naturally aspirated engine put into a production car from General Motors . In addition to the larger displacement 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 (61 kg) 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 . The Z06's body differentiates itself from the standard Corvette with its larger front and rear fenders and an intake inlet scoop on the front bumper . The front fenders are constructed with carbon fiber and the rear fenders contain ducts to aid in cooling the rear brakes . The Z06 weighed 3,130 lb (1,420 kg), giving it a weight to power ratio of 6.2 pounds per horsepower (3.8 kg / kW), allowing it to achieve a fuel economy of 15 mpg (16 L / 100 km; 18 mpg) in the city and 24 mpg (9.8 L / 100 km; 29 mpg) on the highway . 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 11.7 seconds at 125 mph in October 2005 . A pre-production / pre-official model was recorded by AMS against the 483bhp Porsche 996 GT2 with a slower 0 - 60 time of 4.3 seconds and a 0 - to - 400 - meter time of 12.7 seconds in May 2004. The Z06 contains the following enhancements over the standard C6 Corvette: </P> <Ul> <Li> Hand - built LS7 7.0 L 427 CID V8 with dry sump oiling system </Li> <Li> Aluminum chassis with fixed roof </Li> <Li> Larger / stiffer anti-sway bars </Li> <Li> Stiffer springs and shocks </Li> <Li> Larger rear spoiler and front splitter </Li> <Li> Transmission cooler </Li> <Li> Unique front fascia with intake inlet </Li> <Li> Wider carbon fiber front and fiberglass rear fenders </Li> <Li> Functional front and rear brake ducts for added brake system cooling </Li> <Li> Unique light weight forged aluminum 18 - inch front and 19 - inch rear wheels; painted finish standard and chromed finish optional </Li> <Li> Wider 275 / 35ZR18 tires in the front and wider 325 / 30ZR19 tires in the rear </Li> <Li> Larger 6 - piston front and 4 - piston rear calipers, including cross-drilled 355 mm (14.0 in) front rotors and 340 mm (13 in) rear rotors </Li> <Li> Can be ordered with 1LZ, 2LZ, and 3LZ trim packages . </Li> </Ul>

How much hp does a z06 corvette have