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Old 06-30-2011, 12:43 PM   #10 (permalink)
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Join Date: Feb 2011
Location: USA
Posts: 346

Canyon - '07 GMC Canyon 2wd regular cab
90 day: 24.95 mpg (US)
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Keep in mind that the average speed during the EPA highway test is 48.3mph.

Then consider the fact that:
A: Most vehicles are traveling significantly faster than that (sometimes over 70)
B: Many of them have higher Cd than your coupe, and
C: Aero drag is a substantial factor at high speeds,

While some vehicles may be geared to be efficient at higher speeds, the consensus around EM is that high speeds usually result in increased consumption; I imagine that to be true of trucks and SUVs.

The high speed test would likely be a better real-world indicator.

But hey; it's about how you drive the vehicle you already own.
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