One of the best features of the?Chevrolet?Sonic is the fuel-efficient Ecotec 1.4-liter turbo engine, but it was previously limited a manual transmission ? now it?s not. ?Providing the option of a turbocharged engine to our non-stick driving Chevy customers allows us to offer everyone the thrill and power of a fuel-efficient Ecotec 1.4L powerplant,? said…