Internal Combustion Advances

There is a lot of attention being paid to electric vehicles.  Yet, the internal combustion engine isn’t dead.  In fact it is being engineered with significant advances that may keep it competitive for quite some time.  Mazda has been working on it.  See this link:

https://spectrum.ieee.org/transportation/efficiency/mazdas-new-skyactivx-engine-gives-new-life-to-internal-combustion