Click above for a high-res gallery of the Mazda3 five-door hatchback

Even brands with overtly sporty pretensions must be concerned with their fuel economy and emissions, a point that is further evidenced by Mazda's intent to launch start-stop technology in the U.K. on its newest 3, which has proven to be the Japanese brand's most popular model. Before the end of 2009, Mazda plans to add the eco-friendly tech to both the 1.6-liter and 2.0-liter gas-burning four-cylinder engines. Oddly, the car's optional diesels, which are significantly more fuel efficient than their petrol counterparts, will miss out on this bit of tech. It's interesting to note, however, that the 2.0-liter MZR four is the only powerplant is available in Japan, Europe and America, so it seems possible all three markets could benefit from stop-start if Mazda were so inclined.

Those that care little of fuel savings will be happy to welcome the Mazdaspeed (MPS across the pond) version of the 3 hatchback that is slated for release in March at the Geneva Motor Show. A twin-clutch DSG transmission is also reportedly in the works for the 2010 model year, so there's certainly plenty to look forward to from the Zoom Zoom company.

Related GalleryDetroit 2009: 2010 Mazda3 five-door

[Source: Autocar]