Fleshing out this otherwise controversial report is the fact that Mazda has very publicly developed its green powertrain. First, an electric version of the current generation hatchback was developed in Japan, after which they started testing for a 330cc single cylinder range extender. Yep, you guessed it, it was a Wankel engine, just like the one in the now defunct RX-8.
The prototype was powered by a 100 hp electric motor with a single speed gearbox that allowed for a top speed of 120 km/h (75 mph). The first prototypes were shown in 2012, supposedly boasting a maximum driving range of 200 km (125 miles). A year later, Mazda revealed plans for the RE Range Extender. With a displacement the size of a small can of Coca Cola, the motor easily fit under the boot floor, charging the battery when it runs low and extending the range.
We'll know more as early as next month, when the small Mazda will debut in Japan under the local market name "Demio".