Real MPG: Mercedes-Benz SL (2012 - 2020) SL 350

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37.7–39.2
Official MPG
(NEDC)
27.0–36.6
Real MPG
32.7
Real MPG
Average
85%
of Official MPG
(NEDC)

More engines available for this model:

Engine Official MPG (NEDC) Official MPG (WLTP) Real MPG Avg. Real MPG %  
SL 400 33.6–36.7 mpg 28.8 mpg 31.0 mpg 108%* Submit
SL 400 Mille Miglia 36.7 mpg - - - Submit
SL 500 28.8–31.0 mpg 26.4 mpg 25.6 mpg 97%* Submit
SL 500 Mille Miglia 31.0 mpg - - - Submit
SL 63 AMG 24.1–28.8 mpg - 18.5 mpg 70% Submit
SL 65 AMG 23.7–24.4 mpg - - - Submit
*Based on WLTP MPG values

Read the Honest John review...

Mercedes-Benz SL (2012 - 2020)

Impressively refined with a smooth ride. Folding metal roof means it’s as quiet as a coupe. AMG versions are brutally fast.