Save vs. spend:
In cornering fast, you probably find doing it fun (as long as you do it safely and know your limits.)
The amount of gas you save will be negligible. You might save a tiny amount of time in reaching your destination faster, but that too is negligible.
The downside is in increased wear to your tires and suspension. It will more than offset the amount of $$$ you think you might be saving in fuel consumption.
There is a price we pay in everything we do.