Nopes! there isnt any significant difference in fuel economy. The problem with chonda is that the assemblers intentionally use subpar quality parts on some bike to keep the overall cost of the batch low. Therefore some Chondas will work fine while the one with cheap parts will cause problems to the owners. I bought a chonda unique UD70 and it was fine..... my cousin bought the same kind and his was pathetic........So a safe bet is to buy from a reputed assembler as they wont do so. Honda is way too expensive.....and if I had to buy a bike now I would go for a DYL Dhoom 70cc.