REAL MPG:

Mercedes-Benz SL (2012 on) SL 400

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33.6–36.7
Official MPG
27.5–32.4
Real MPG
29.7
Real MPG Average
85%
of official MPG

More engines available for this model:

Engine Official MPG Real MPG Avg. Real MPG %  
SL 350 37.7–39.2 mpg 33.3 mpg 87% Submit MPG
SL 400 Mille Miglia 36.7 mpg - - Submit MPG
SL 500 28.8–31.0 mpg 28.1 mpg 94% Submit MPG
SL 500 Mille Miglia 31.0 mpg - - Submit MPG
SL 63 AMG 24.1–28.8 mpg - - Submit MPG
SL 65 AMG 23.7–24.4 mpg - - Submit MPG

Read the Honest John review...

  • Mercedes-Benz SL (2012 on)
    Impressively refined with a smooth ride. Metal folding roof means it's as quiet as a coupe. AMG versions are brutally fast.

    Rivals

    Mercedes-Benz SL (2012 on) 30.8 avg
    mpg
    Mercedes-Benz SLC (2016 on) 40.2 avg
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    BMW 6 Series Gran Turismo (2017 on) 38.5 avg
    mpg
    Audi A5 (2016 on) 36.7 avg
    mpg

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