Kia isn't the only one boasting exemplary fuel efficiency, these days. In an era where fuel efficiency is at the forefront of consumers' minds, all automakers are clamoring to tout their estimated mpg. The trick, however, is to be the one consumers pay attention to.
In their latest effort to garner drivers' attention, Kia has enlisted its 2011 Optima Hybrid on a cross-country road trip, aiming to snag an entry in the Guinness Book…