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Old 04-20-2008, 09:46 AM   #4 (permalink)
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Join Date: Jan 2008
Location: Chicagoland
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- - '10 Toyota Prius III w/Navi
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Hi Again,

There is some wake turbulence back there, though. I know this because I had a ninja motorcyle bike rider draft off my left rear by about a foot while I was running on level terrain in cruise control at 62 mph. And that improved my mileage, rather than decreasing it. The motorcyle and rider were apparently giving my car a psuedo boat tail effect, and probably smoothing out the side body air flow off the back of the car. This was good for about a 2 mpg improvement.
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