Powering the quicker TDI model is a super fuel-efficient 2.0-liter four-cylinder turbodiesel good for 140 horsepower and 236 pound-feet of torque. It can be had with either the 6-speed manual transmission or a 6-speed dual-clutch automated manual (called DSG). Its impressive gas mileage numbers come in at 31 mpg city and 43 on the highway with the manual and 30 and 40, respectively, with the DSG.