SKY-G

Next year's Mazda3 models will deliver fuel efficiency gains over their 2011 counterparts, the company said today, as it unveiled refreshed versions of its popular compact hatchback and sedan, to go on sale later this fall. The 2012 Mazda3 will offer as an option what Mazda now calls the SkyActiv-G engine and SkyActiv-Drive automatic transmission. The company provided few details or specifications--it didn't even give the displacement of the engine in question--and did not cite any fuel consumption data. The new engine cuts fuel use and emissions thanks to direct injection and other tweaks...