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      10-29-2007, 09:05 AM   #3
lucid
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Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

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Thanks for the update. I've been trying to make sense of that efficiency improvement statement as well. It might be referring to the engine only. The E92 M3 is heavier; it would be hard to lower the overall efficiency with a 8 cylinder engine.