Yeah, it's just a simple little tweak that maybe saves a percent or two of fuel. It doesn't use any fancy new component that can be boasted about (or added as a badge to the trunk lid), but then it costs next to nothing.

The truth is that good fuel economy comes form lots and lots of little savings, not from some magic technology bullet, that may add $1000 to the price of a car to save $500 in gas in its lifetime.