Under the 2007 Saturn Sky Red Line’s hood is an Ecotec 2.0-liter turbocharged direct-injection four cylinder engine making 260 horsepower at 5,300 rpm and 260 lb.-ft. of torque at 2,500 rpm. That’s a significant bump over the standard Sky’s 170-horsepower four banger, thanks to a dual-scroll turbo with a lightweight turbine, air-to-air intercooler, and dual-cam phasing that optimizes valve timing at lower revs to help create a broad torque band and eliminate turbo lag.