The internal combustion engine is effectively dead for a number of reasons, including:
1.	The second law of thermodynamics, which limits all heat engines to the theoretical Carnot efficiency (and which means that gasoline and diesel engine will never be even one third as efficient as electrics). 
2.	The continually falling costs of batteries (down 80% in the last six years, with the rate of decline accelerating due to greater research and production volumes).
3.	The inherent advantages of electric drive trains, including 400% greater efficiency, 99% fewer moving parts, 90% less maintenance, less vibration, higher performance and more usable power delivery, less noise, greatly reduced emissions and environmental impacts, and more convenience for most automotive applications (the electric fuel “tank” is full every morning). 
4.	The world’s largest markets for new cars (including China, India, and  European countries) are mandating the extinction of gasoline and diesel vehicles.