That must have been an interesting driving cycle for a gas 3008 (120hp?) to get better mileage than a Prius, even though it tests far worse.
Peugeot - 3008 - 1.6 VTI (120 Hp) - Technical specifications, Fuel economy (consumption)
I've never heard of a Prius owner call it a Pious either. I'll leave everyone to draw their own conclusions.
