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Old 02-04-2014, 01:37 AM   #16 (permalink)
renault_megane_dci
Master EcoModder
 
Join Date: Feb 2009
Location: France - Paris
Posts: 762

la_voiture_de_courses - '03 Renault Megane Estate
OldContinents
90 day: 44.34 mpg (US)

xiao lan - '01 Audi A2
90 day: 38.88 mpg (US)

Brit iron - '92 Mini Mini
90 day: 45.5 mpg (US)

Prius - '09 Toyota PRIUS Lounge
90 day: 47.37 mpg (US)

Beemer - '06 BMW F800 ST
90 day: 53.06 mpg (US)
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Your best bet is the smallest displacement, FE and the most gears.
An engine designed for efficiency from low RPM rather than for top end power is also a big plus.
I think the CBR 250 fits in the "designed for efficiency rather then power" cluster (compared to a EX250 for example)
I wouldn't go for a 4 speed engine.
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