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      08-13-2007, 10:21 AM   #10
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lucid's Avatar
Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

Posts: 8,034
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I missed this part during my first pass:

"according to official weights from BMW and Mercedes, the AMG engine weighs 199kg, compared to 202kg for the M3's four-litre V8."

I am not sure what they include/exclude in this measurement, but at least it gives us a rough estimate of how much these engines weigh. Does anyone have numbers for the RS4 and the 335?