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Old 11-28-2016, 11:35 AM   #6 (permalink)
ever_green
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Join Date: May 2011
Location: Toronto
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gueff - '19 Mercedes Benz A250 4MATIC AMG
90 day: 30.55 mpg (US)
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Quote:
Originally Posted by Stubby79 View Post
You're right where it's supposed to be, at 19 mpg.
https://www.fueleconomy.gov/feg/noframes/25165.shtml

It weighs 3500lbs, it's a small(ish) turbo-charged engine, it's a sports car...it's not going to get stellar fuel mileage whatever you do.

Yes, I know, how very unhelpful of me. Sorry, but ya gotta face the facts, IMO.
But how does the cla45 achieve much better consumption? I'm guessing they are using Atkinson cycle timing with lean burn or delayed open loop fueling.
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