Peugeot issued a short press release during the show (available below) that explains that the clean hatch actually emits just 46 grams of CO2/km. That means the Peugeot 208 Hybrid FE Concept's true number is 118 mpg (still in US gallons, but this is using Europe's lenient NEDC European Drive Cycle Combined fuel efficiency test). Whether the problem stemmed from incorrect or incomplete testing before the show or from someone writing the six upside down, we don't know.
Aside from a frugal sense of consumption, the 208 HYbrid FE has a bit of punch. It goes 0-62 miles per hour in eight seconds, which isn't going to set records but does reveal a bit of the car's racing roots from the Peugeot Sport department. That history may also explain why Peugeot took out the air conditioning system, citing, "its impact on fuel consumption." Perhaps it's a good thing this concept is destined just for the auto show circuit.
During the Peugeot press conference at the Frankfurt International Motor Show, Maxime Picat, Peugeot's Managing Director, announced that the 208 HYbrid FE has exceeded its objectives. The Peugeot Total partnership had passed a new limit for a non plug-in petrol full hybrid vehicle: 46g CO2/km, equal to fuel consumption of just 1.9 l/100km (148.7 mpg).