Chicago Tribune Reviews Mazda3 Hatchback (October 7, 2013)

Improvements in economy and power derive from Mazda’s Skyactiv technology. Introduced in 2012, it essentially gets more energy from the fuel and reduces engine friction. The Mazda3 has more low-end torque than its predecessors and has dropped 220 pounds. The 5-door 2.0 liter four gets an EPA-estimated 40/30/33 highway/city/combined, while the 2.5L gets 37/27/31. i-Eloop, a regenerative braking system to power the car’s electrical equipment, can add 1 mpg.

SEE: "2014 Mazda3: The long and short of Mazda's best-selling compact"