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      04-13-2021, 06:21 PM   #149
xxpanipuri
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Drives: 550i
Join Date: Dec 2015
Location: Silicon Valley, CA

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Its only an m-car if the MOTOR has an S in the engine code...

the m550i has an n63tu motor where the m5 has s63tu motor...

in the 1990 BMW made a BMW 850CSI - which was a bmw motorsport built v12..

where the 840i / 850i were NOT motorsport built motors...
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