They claim that they drove 7, 899 miles over two weeks in a KiaOptimaHybrid (with no special modifications) and claimed to achieve an ASTOUNDING 64.55 miles per gallon.
During the first month of driving my new KiaOptimaHybrid, my average miles per gallon did not appear to be more than a mile or two off per gallon off the estimated MPG displayed on the window sticker.