New engine on model 2012 PCX 125

[Helmetgurus]

I've ordered a PCX 125 in Holland which is meant to arrive at the end of May (because of floods in Taiwan earlier this year?).
Today I heard from my dealer that it will have the new engine, the eSP enhanced smart power engine. Improved durability, fuel economy, power and torque and quieter operation. I noticed the fuel tank capacity wasn't improved, was 6,2L and now 5,9L (I wished they built in a 15L/4 Gallon tank, that would be nice on longer journeys). Also slightly heavier, about 3kg.

Anyone has heard about his? Or experiences?

[Conelite]

With better efficiency you don't need as much fuel to go the same distance. Its not anything dramatically different. I wouldn't worry too much. A 4Gallon Tank would be amazing.