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Mercedes launches 57 MPG SLK Roadster

Discussion in 'Diesels' started by eheath, Aug 21, 2011.

  1. eheath

    eheath Member

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    #1 eheath, Aug 21, 2011
  2. cwerdna

    cwerdna Senior Member

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    "57 mpg" is in larger Imperial gallons. 4.9 l per 100 km = 48.0029762 miles per US gallon and that's on inflated European test cycles.

    Per Select a search : Directgov - Car fuel data, CO2 and vehicle tax tools, the 3rd gen Prius gets 72.4 miles per Imperial gallon combined on their cycle. 72.4 miles per Imperial gallon = 60.285586 miles per US gallon.
     
    #2 cwerdna, Aug 21, 2011
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  3. cyclopathic

    cyclopathic Senior Member

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    so should be ~38MPG on EPA, about the same as Jetta?
     
    #3 cyclopathic, Aug 21, 2011
  4. eheath

    eheath Member

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    The EU cycle ratings have typically not been inflated for diesels from what I've seen.

    In addition, even at 48 mpg US, with 0-100 km at 6.7 seconds, it's still a true sports car and I can't think of any true sports cars that get 48 mpg.
     
    #4 eheath, Aug 21, 2011
  5. Corwyn

    Corwyn Energy Curmudgeon

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    ...and higher energy content diesel fuel. Factor in another 82.6% reduction if you want to compensate for that. Or alternatively, factor in the price difference.
     
    #5 Corwyn, Aug 21, 2011
  6. eheath

    eheath Member

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    Just paid 1,34 per liter of diesel on a trip versus 1,45 /l for petrol. What was your point re cheaper diesel in the markets where this car will be offered? :confused:
     
    #6 eheath, Aug 21, 2011
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