When Doug Pelmear and his notchback Ford Mustang nearly broke the internet with his claims of some magical engine tinkering returning 110 MPGe (80 MPG) — while making 400 HP — we were skeptical to say the least. That "MPGe" figure is there because the car runs on ethanol, so the extra "e" on the end signifies the energy equivalent to a gallon of regular gasoline. Now Pelmear is taking the 110 MPG Mustang on a cross-country road trip to prove the skeptics (us) wrong, ending at this years SEMA show where he probably won't be popping the hood so everyone can poke around. The car is being entered in the Progressive Automotive X Prize contest as well, where it will compete against others with the goal of 100 MPG in a four-passenger car. We're going to continue waiting, edible hat in hand, for scientific measurements to back up his claims. [WNWO, via MustangRevolution]