2014 Mazda 6 With i-Eloop Capable Of 40 MPG

With neither hybrid nor electric vehicles in their lineup, Mazda has sought to perfect internal combustion technology instead. To help assist the new SkyActiv engines though, Mazda has introduced its optional i-Eloop regenerative braking technology, which can boost the Mazda 6 fuel economy ratings to 28 city and 40 highway.

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X2 HEHC Rotary Engine Can Run Multiple Fuels, Requires No Cooling

The nature of the internal combustion engine is harnessing the power of thousands of small, controlled explosions. Alas, most of the energy created is wasted as heat, but a new rotary engine design can almost double the thermal efficiency of almost any kind of fuel while requiring fewer moving parts for a light, powerful, and simple engine design.

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