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      12-01-2019, 06:58 PM   #2
cfm56d7b
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Drives: 2017 440i Gran Coupe & 2015 X5
Join Date: Nov 2012
Location: Orange County, CA

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These cars are difficult to compare. 340 has the newer B58 engine while 435 has the previous generation N55. I prefer B58 and it's never perfect linear power delivery.

Is there a way to learn how both cars were driven and maintenance history? I'd say these two factors are even more important than the engines.
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