Classification There are several possible ways to classify internal combustion engines. Reciprocating: By number of strokes Two-stroke engine Clerk Cycle 1879 6 Day Cycle Four-stroke engine (Otto cycle) Six-stroke engine By type of ignition Compression-ignition engine Spark-ignition engine (commonly found as gasoline engines) By mechanical/thermodynamical cycle (these 2 cycles do not encompass all reciprocating engines, and are infrequently used): Atkinson cycle Miller cycle Rotary: Wankel engine Continuous combustion: Gas turbine Jet engine Rocket engine Ramjet The following jet engine types are also gas turbines types: Turbojet Turbofan Turboprop Źródło: https://en.wikipedia.org/wiki/Internal_combustion_engine
The hybrid vehicle typically achieves greater fuel economy and lower emissions than conventional internal combustion engine vehicles (ICEVs), resulting in fewer emissions being generated.
A smaller engine can have less internal losses and lower weight. Having significant battery storage capacity to store and reuse recaptured energy, especially in stop-and-go traffic typical of the city driving cycle. Recapturing significant amounts of energy during braking that are normally wasted as heat.
Hybrid cars may use special tires that are more inflated than regular tires and stiffer or by choice of carcass structure and rubber compound have lower rolling resistance while retaining acceptable grip, and so improving fuel economy whatever the power source. Powering the a/c, power steering, and other auxiliary pumps electrically as and when needed; this reduces mechanical losses when compared with driving them continuously with traditional engine belts. These features make a hybrid vehicle particularly efficient for city traffic where there are frequent stops, coasting and idling periods.
In addition noise emissions are reduced, particularly at idling and low operating speeds, in comparison to conventional engine vehicles.For continuous high speed highway use these features are much less useful in reducing emissions. Źródło: https://en.wikipedia.org/wiki/Hybrid_vehicle#Environmental_issues
I must admit that in this case, it is often true fan event for the automotive industry, which for years had dreamed about it, to go for a car ride, which in everyday terms will not be able to afford.It is no wonder that many people going to a car dealership just to try these wonderful, but exorbitantly expensive machinery. Especially in big cities simulating the role of the potential customer it is fairly easy to do and quite common..