http://FremontMazda.com 866-427-0551 The 2012 Mazda 3i SV and Sport trims are powered by a 2.0-liter four-cylinder engine that produces 148 horsepower and 135 pound-feet of torque. A five-speed manual is standard on both subtrims, but the Sport can be equipped with an optional five-speed automatic. In Edmunds performance testing, an automatic-equipped 3i with this engine went from zero to 60 mph in 9.9 seconds. EPA-estimated fuel economy is 25 mpg city/33 mpg highway and 28 mpg combined with the manual and 24/33/27 with the automatic.