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The MX-30 EV has a small battery and limited range about 125 miles) on purpose according to Mazda to reduce the use of expensive and heavy batteries. Next year a version with a new power unit incorporating a single rotor Wankel engine will be on sale. This is designed to double the battery-only range but at the same time save weight. Picture of the power unit here – electric motor, then gearbox, the rotary engine, then generator. The engine is designed to run on petrol, LPG or hydrogen. From an engineering point of view I find it an exciting idea. Much like the i3 range extender but much more advanced. Any thoughts?