It must be a triple conspiracy
VW - or the VAG rather- have also put a triple 1L engine in the up - and its half-sisters the Seat Mii and Skoda CitiGo ...yes, that makes them triplets !
Overview : Engines : Which model : Up : New : Volkswagen UK
No turbo on the VAG 1L, so it only makes 60 or 75 HP
In the CNG version, based on the 75HP version, it only has 50kW /68 HP and a mere 90 Nm of torque.