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      01-30-2013, 01:05 PM   #91
baba louey
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Drives: 2012 M3 coupe
Join Date: Aug 2012
Location: calgary

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These days car manufacturers are doing everything they can to save weight to increase performance. All types of performance; acceleration, braking, cornering, and fuel economy. Don't forget that the M3's fuel economy is used in the corporate average and there are some regulations/taxes that kick-in if certain numbers are exceeded. In Canada if the fuel economy is >= 13L/100kms then a minimum $1000 tax has to be paid. Fortunately the M3 officially comes in just under that (12.7 I believe) so no additional tax. Yippee! I going to guess that BMW used the CF roofed cars to come up with their fuel economy numbers.