• Jan 22, 2009
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.


[Source: Autocar]


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    • 1 Second Ago
  • 24 Comments
      • 5 Years Ago
      Interested to see what kind of MPG gains will be had by the stop-start and if it will be enough to put it closer to the Civic/Corolla and how/if this system will work on a manual transmission.

      Twin clutch DSG on the Mazdaspeed version will be very cool but I hope a manual cog swapper will still be available...
      • 5 Years Ago
      Yes of course the manual will still be available


      But a DSG Speed3? WHATTTT?! Awesome surprise if it does happen!
        • 5 Years Ago
        Well I'm just worried cos the Nissan GT-R didn't come offered with a standard transmission.

        Then again Nissan is all kinds of whack-o about that car anyway like not selling the engine separately for any reason (like that will be hard for tuners/hobbyists to get around).
      • 5 Years Ago
      Fine, Mazda, don't give us start/stop. Can we compromise and have the diesel instead?
      • 5 Years Ago
      If it's sipping fuel- why such a big mouth?
        • 5 Years Ago
        A horse this ugly deserves endless beatings.

        Or at least until the 2011 refresh...
        • 5 Years Ago
        It helps if you raise you hand to cover everything below the headlights... Then, it's smashing!
        • 5 Years Ago
        Marvin, that big mouth is obviously for something else naughty.
      • 5 Years Ago
      WHY MAZDA WHY?!!?!?!?!
      • 5 Years Ago

      Is this borrowed from Ford, or did Mazda develop this technology on their own?
      • 5 Years Ago
      ABROAD!? Why not here? Are we not cool enough for its big mouth?
      • 5 Years Ago
      Just saw this in person at the NAIAS. I hated it in photos, but love it in the flesh.

      The interior is amazing for the its category.
      • 5 Years Ago
      "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 not odd at all if you know how the system works:

      "With SISS, when an engine is shut down, electronic controls ensure that it stops with all four pistons, of a four-cylinder engine, lined up exactly half way between top- and bottom-dead centre. When the signal to automatically restart is received, a squirt of fuel is injected into one cylinder, via Mazda's DISI direct-injection system, and its spark plug is fired, causing ignition in that cylinder alone that pushes its piston down, rotating the engine slightly backward. At that point, as other pistons are pushed up into compression, the normal fuel-injection and ignition systems take over, igniting the mixture in those cylinders and starting the engine in the forward direction – without the aid of any electric starter. Not only that, the system restarts the engine in less time than it takes with an electric starter, according to Mazda, thus making its operation even more seamless – a point subjectively verified by a demonstration drive. According to tests conducted to Japan's emissions/fuel-consumption testing procedure, SISS reduces consumption by approximately 10 per cent, Mazda says, with virtually no extra cost in hardware, and no additional weight for beefed up starter motors or batteries." (source: wheels.ca.)

      and I suppose you know that diesel engines have no spark plugs, which means this technology cannot be applied to diesel engines.

      • 5 Years Ago
      Mazda3 needs to get a new front end.
      • 5 Years Ago
      the stop-start should be included in all the DI engines going forward (imo if not true already).
      and it would be no more damaging to the engine than parking, getting your coffee/gas/smokes/pr0n mag/etc, and starting the car again. in fact it would be less damaging since the 'stop' would only be traffic light, etc (oil would not be able to drain all the way and who's to say they won't have some kind of pressurizing system to keep the internals lubed anyway).

      • 5 Years Ago
      This article does not even touch on what exactly this "start-stop tech" is... There's not even a link. This means nothing....
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