The all-new 2015 Z06 Corvette with its LT4 supercharged 6.2L, 650 horsepower and 650 lb-ft (881 Nm) of torque, will not get the same gas mileage as the non-supercharger brethren, but it is still a gas sipper compared to other super performance cars. According to the US Department of Energy’s website, the 2015 Corvette Z06 with the 8L90 eight-speed automatic will get 13 mpg city, 23 mpg highway and a combined rating of 16 mpg. Sorry, but the figures for the 7-speed manual were not listed yet.