Most Fuel Efficient Hybrid Cars 2020. There are two parts to the test: an 'urban' cycle designed to reflect driving in a city environment with many stops and starts and an 'extra-urban' cycle designed to mirror more steady state motorway and country routes. The cars are categorized based on Natural Resources Canada (NRC) size classifications which are based on interior volume (passenger + cargo volume).
While hybrid electric vehicles are among the most fuel-efficient cars on our roads, they are less advantageous at highway speeds, where the additional weight of the vehicle and the reduced need for regenerative braking impact overall efficiency.. The most fuel efficient gas-powered, hybrid, plug-in hybrid (PHEV), and electric vehicles (BEV) are listed by size class. There are two parts to the test: an 'urban' cycle designed to reflect driving in a city environment with many stops and starts and an 'extra-urban' cycle designed to mirror more steady state motorway and country routes.
The official MPG figures for all vehicles, including hybrid models are derived from the NEDC test.
Least Efficient Cars by EPA Size Class.
The most fuel efficient gas-powered, hybrid, plug-in hybrid (PHEV), and electric vehicles (BEV) are listed by size class. Every single car on this list is a plug-in hybrid that requires charging a battery via a public or personal charger. With the economic situation around the world getting worse and worse, people are always.