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      02-07-2019, 07:57 PM   #21
rowsdower
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Drives: 2011 128i 6MT Sport
Join Date: Jan 2017
Location: Texas

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Fair enough, Jim. I like understanding things and this is a good discussion.

My father in law has a C6 vette that turns about 1200rpm in 6th at 75mph, where my car is turning close to 3 grand. Both cars accelerate at about the same rate when you put your foot down in 6th at that speed, but the vette gets about 30mpg to my 25. Some of that is aero but a lot of it is rpm like you said. Or maybe all of it is aero, but the aero gain isn’t offset by the fact that it’s a 6+ liter V8 because it’s turning so slowly.
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