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Click above for high-res gallery of the current Mercedes SLK

While Porsche reportedly mulls the idea of a four-cylinder Boxster and Audi offers a TDI version of its iconic TT, Mercedes-Benz is now reportedly preparing to offer a diesel engine in its next-generation SLK.

The unit in question will be the same 2.2-liter "BlueEfficiency" 4-cylinder twin-turbo diesel currently offered in the C250 sedan, where it returns a claimed 54.3 mpg while spewing out just 138g/km of carbon dioxide. Although to previous generations the idea of a diesel convertible remains an anathema, the advance of particulate filter and common rail injnection technologies now common among the most advanced diesel engines make them a viable, earth-friendly option for open-air motoring. Unfortunately, no mention was made whether or not the diesel SLK will be offered in the U.S., which is a tough question for all automakers to answer when it comes to diesels thanks to stricter diesel emissions standards in California and other states compared to the rest of the country.


[Source: Automotive News – subs. req'd]



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  • 14 Comments
      • 6 Years Ago
      SLK (both generations) should be listed among the most beautiful cars ever created. Such an incredible blend of the F1 racing car motives and true luxury in a solid package puts SLK, in my opinion, above every other car in the segment.
      • 6 Years Ago
      54 mpg in a Merc, nice work!
        • 6 Years Ago
        mercedes has three diesel suvs for sale right now
      • 6 Years Ago
      "common rail injnection [sic] technologies"

      Running the spell check really takes that long?
      • 6 Years Ago
      I believe Peugeot has offered a Diesel convertible recently, the 206 CC.
        • 6 Years Ago
        Pretty much every convertible is offered with a diesel option.
        It's more the roadsters like Z4/SLK/TT etc that until recently where missing them.
      • 6 Years Ago
      I'm at the "I'll believe it when I see it" phase. Seems like everybody has been promising diesels for the last two years and how many have actually arrived?

      The Jetta and.....um.....
      • 6 Years Ago
      cant stop looking at the silly grin on that guy .
      • 6 Years Ago
      A fun car that gets 50+mpg? Wow!
        • 6 Years Ago
        Who says it will still be a fun car?

        A diesel that revs to all of 4000 RPMs, with torque, but relatively low horsepower...

        It will be like driving a stylish tractor.

        I like diesels for what they do, but they are an economy engine, or a workhorse engine, neither of which are a sporty engine.

        And before someone brings up Audi R10 TDI, that isn't the same thing, because no production cars have such highly tuned diesel engines, not even actual Audis.
        • 6 Years Ago
        My defininition of fun might be different from your's. Fun to me is being able to cruise down to the shore with the top down, wife at my side, with no kids behind me kicking my seat. In this case fun doesn't rely on the engine being extremely powerful or free revving, especially with the way NJ roads are.
        • 6 Years Ago
        "A diesel that revs to all of 4000 RPMs, with torque, but relatively low horsepower..."

        Why does it have to squeak to be fun? I've always thought tuned gassers sound silly when they're not being driven hard -- all mouth and no trousers. A diesel, tuned or not, can just rumble away when it's not being used for fun. And then when you open it up -- it's something altogether different.

        "no production cars have such highly tuned diesel engines, not even actual Audis."

        Just keep your eye on the TT and this Merc then.

        As for a drop top having a diesel engine -- fill it up with grease and smell the fries!
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