Anybody with an M3 want to bust/confirm this guy's "tip"?
Quote:
Since this seems to be coming up a lot more recently, I thought I'd post it and some fuel efficiency tips.
The optimal speed for fuel economy in this car seems to be around 80mph.
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While you have to give him credit for laying out out his testing approach (details are posted in an M3 enthusiasts forum, see link below), the absense of 50 & 60 mph speeds seems to me to be a gaping hole in the data.
I'm pretty skeptical of the conclusion.
Forum thread:
http://www.m3forum.net/m3forum/showthread.php?t=216328
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FYI, as a point of comparison, I tested the fuel economy of a 505 hp Corvette, and its best economy landed pretty much where I expected it would: (meaning,
nowhere near 80 mph)
http://ecomodder.com/forum/showthrea...05-a-9841.html