85.6 MPG, 7-speed dual-clutchThe Honda Fit has always been a very innovative small car (the way the seats can be folded origami-like to maximize storage is very cool), and the all-new 2015 hybrid version of the Fit seems to continue that tradition: It will be the first Honda hybrid model to be equipped with what they call a Sport Hybrid Intelligent Dual Clutch Drive (i-DCD, it's basically a 7-speed dual clutch transmission and a 22-kilowatt electric motor) rather than a continuously variable transmission (CVT) coupled to a newly developed 4-cylinder 1.5L Atkinson-cycle engine. The dual clutch transmission can completely disengage the gas engine from the electric motor, allowing electric-only drive.
Fuel EconomyHonda claims a fuel economy of 36.4 km/L (which converts to 85.6 MPG US, or 2.7 liter/100 km) over the Japanese JC08 cycle. That's a lot, but the Japanese test-cycle always results in higher fuel economy numbers than the U.S. test cycle, so this is a bit apples and oranges.
Sadly, it doesn't look like Honda has plans to bring the 2015 Fit Hybrid to the U.S. directly, but we might get the next best thing. Honda is apparently building a compact sedan and crossover based on the Fit, and it could be sold in North-America early in 2014 with this hybrid system. Hopefully it'll achieve similarly high fuel efficiency.