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Old 02-22-2012, 07:42 PM
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fun2drive fun2drive is offline
BMWCCA 149159
Location: Panhandle of Florida
 
Join Date: Nov 2005
Posts: 2,630
Mein Auto: 335 vert//M3/4/ 13Outback
I have two M3's and mine on the interstate get 27 for the M3/4 and 25 for the M3 convertible.
Mixed 24-25 for the M3/4 and 23 for the M3 vert.
Never produced anything over 28 mpg and seldom see 28 mpg but consistent 27 mpg.
I have owned my M3 since I bought it CPO from the dealer in 2000.
Hope that helps...
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