Beat the NEDC in a Seat Mii (a VAG triplet)
 

Did 847,8 kilometres on 33,77 litres =
25,1 km/L
3.98 L/100 km
59.06 mpg (US)
70.9 mpg (Imp)

Thus beating the New European Driving Cycle assessment of 4,1L/100 km. Only mods to the car are Phillips ecoVision H4, some gap sealing around the hood, some lighter wheels and 2,9 bar in the tyres. The rest is just hypermiling:turtle:!

Really excited about this result, as this was the first major milestone!

Much more is yet to come from this little triplet, next goal is 3,5 L/100 km. The plan is still to have the car lowered by 2-2,5 cm, grill block, LiFePo4 battery and some led DRLs.

Very nice, very nice! Congratulations! What is the engine in the Mii?

Thank you! The engine is a one-litre three-cylinder, 12-valve petrol engine, the same as in the Volkswagen Up! and Skoda Citigo. The one in my car has 60 hp, and 95 nm.

UP! Engines - Volkswagen UP Owners Club