http://PreferredAutoImports.com 866-924-9139 The Ford Mustang V6 is powered by a 3.7-liter engine producing 305 hp and 280 pound-feet of torque. The Mustang GT steps up to a 5.0-liter V8 good for 412 hp and 390 lb-ft of torque. Both have a standard six-speed manual transmission, while a six-speed automatic is optional. As if this isn't enough, the Boss 302's 5.0-liter V8 ups power output to 444 hp and 380 lb-ft of torque. The Mustang V6 coupe earns an EPA fuel economy estimate of 19 mpg city/31 mpg highway and 23 mpg in combined driving with the automatic transmission, while the manual is estimated at 19/29/22 mpg. The GT has an 18/25/21 mpg rating with the automatic and 17/26/20 mpg with the manual.