I'm really hoping it's based upon more than JUST RPM though, because one could easily be frequently going up and down in that 150-200 RPM range while driving on the highway especially when not using "cruise control" (I never do).
Off the top of my head though, I can't remember what RPM I'm near on the interstate.
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Black Sapphire 328i ///M Sport Coupé
Save the Manuals!
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