Fuel efficient cars are highly demanded cars among the masesses. People choose them as per their need and capacity but always opt for fuel efficiency. here we present the list of most Fuel Efficient Cars List:

  1.  Honda Insight
  2. Toyota Prius
  3. Hyundai Ioniq
  4. Toyota Corolla
  5. Honda Accord
  6. Toyota Camry
  7. Hyundai Sonata
  8. Kia Niro
  9. Toyota Avalon
  10. Ford Fusion

Let’s have a look to these amazing cars one by one:

Honda Insight

Honda Insight is one of the most fuel efficient and a hybrid electric vehicle which is marketed by Honda. As a two-door and two-passenger liftback, whereas it is converted into four doors that is in its second generation.

Presently it is in its 3rd generation, that has a four doors sedan with an integrated motor assist system along with the most fuel-efficient gasoline-powered car, which is available in the U.S. without any plug-in capability for the length of its production.
EPA figures for the first-generation Insight were 61 City/70 Highway/65 Combined under then-current EPA conditions. The numbers which were reduced to 49 City/61 Highway/53 Combined by following EPA specifications.

In Japan in February 2009 and the United States on March 24, 2009, Honda launched the second-generation Insight.

The Insight was the United States’ least expensive hybrid. For the 2011 model year, Honda launched a less costly base model in December 2010. The Insight was introduced in the U.K. as the lowest-priced hybrid on the market in April 2009 and became the month’s bestselling hybrid.


In April 2009, the Fuel-efficient Insight ranked as the top-selling vehicle in Japan, a first hybrid model. The second-generation Insight sold 143,015 units worldwide within its first twelve months after being first made available on the Japanese market. In July 2014, along with the Honda FCX Clarity hydrogen fuel-cell car and the Honda Fit E.V. electric car, Honda announced the end of the Insight for the 2015 model.


The Honda Insight is a 3,945 mm (155.3 in) long subcompact 2,400 mm (94.5 in) wheelbase lift with a height of 1,355 mm (53.3 in) and a width of 1,695 mm (66.7 in). The Insight first-generation was constructed as a two-seater, introduced in a single trim level with a manual transmission and optional air conditioning.

Two trim levels were available in the second year of production: manual air conditioning transmission continuous variable transmission (CVT) air conditioning.

The only significant improvement during its life span was introducing a trunk-mounted, front-controlled and multiple-disc CD changer.

With a drag coefficient of 0.25, the Insight was thin, light, and streamlined, in addition to its hybrid drive system. At the time of production, it was an aerodynamic production car to be manufactured.


The gasoline engine is a 3-cylinder model of the ECA series with 67 hp (50 kW; 68 P.S.), 1.0 liters, offering lean-burn operation with an air-to-fuel ratio can exceed 25.8 to 1. To reduce weight, the engine utilizes lightweight aluminum, magnesium, and plastic.

An addition to it’s fuel efficiency. 10 kW (13 hp) and a maximum of 36 pound-feet (49 Nm) of torque are applied to the electric motor assist when called to improve output to the level of a standard 1.5 L petrol engine. It also serves to recharge the vehicle’s batteries as a generator during deceleration and acceleration and as the Insight’s starter motor.


The Insight utilizes the first generation of Honda’s Integrated Motor Assist hybrid technology (IMA). (The next generation, used in the Honda Civic Hybrid, is much more space-efficient.) An ultra-thin 10 kW brushless electric motor of 60 mm (about 2.4 inches) mounted on the crankshaft is the Insight’s electric assist. A series of commercial-grade ‘D’ NiMH batteries wired to provide a nominal 144 V DC are placed behind the seats.


The NiMH batteries drive the electric motor during heavy acceleration, supplying additional power; during deceleration, the motor serves as a generator and uses a mechanism called regenerative braking to recharge the batteries. A computer control module monitors how much power comes from the internal combustion engine and how much from the electric motor; it also finds the CVT version’s optimum gear ratio. The digital displays on the dashboard instantaneously show fuel consumption.

Honda Insight Battery
Honda Insight Battery

The up and down arrows that are on the manual transmission indicate when to change gears. Dashboard gauges control the battery’s current state, instantaneous fuel consumption, electric motor mode, standby, motor assistance, or battery charging. Fuel economy is improved by high pressure, low rolling resistance tires, and low viscosity “0W-20” synthetic oil.

Fuel Efficient Honda Insight

There was a traditional manual transmission in the original Insight. A CVT version of the fuel efficient Insight was available beginning with the 2001 model; the CVT is comparable to that used in the Honda Civic Hybrid and Honda Logo. A conventional transmission switches between a fixed set of ratios between the engine and the wheel; however, a CVT makes an infinite set of ratios between its lowest and highest gear.


The ability to automatically turn off the engine when the vehicle is not moving is a function shared by the two hybrids (and now appearing in others) (and restart it upon movement).

As this fuel efficient model is more powerful than most traditional car starters, the Insight’s electric motor can start the engine almost instantaneously.

Integrated Motor Assist is operated by a desktop computer-sized “Intelligent Power Unit (IPU)” box. Under the vehicle’s cargo floor, behind the seats, are the Intelligent Power Unit, the Power Control Unit, the Electronic Control Unit, the vehicle’s batteries, the DC-to-DC converter, and a high-voltage inverter.

Engine Fuel Efficient Honda Insight

To minimize the vehicle’s weight, the fuel efficient Honda significantly improved its fuel efficiency by using aluminum and plastic. A modern, fuel efficient lightweight aluminum monocoque is the bare frame, reinforced in critical areas with aluminum extrusions joined to cast aluminum lugs. Stamped aluminum panels are welded to this frame to form a too light and rigid framework for the drivetrain and suspension.


The Insight has a bodyweight of less than half that of the contemporary 3-door Civic, with 38 percent of increased torsional rigidity and 13 percent bending rigidity. In addition to standard aluminum wheels, the Honda designed the Insight with aluminum front brake calipers and rear brake drums. With a mostly aluminum suspension, they reduce the ratio of unsprung to sprung well as the total weight.

Plastic is the fuel tank; the motor mounts are aluminum; and a short, thin wall pipe is the exhaust. Aluminum is also his lightweight substitute. The Insight weighed 1,847 lb (838 kilograms) without air conditioning in manual transmission form, 1,878 lb (852 kg) with manual and air conditioning transmission, or 1,964 lb (891 kg) with CVT and air conditioning.

Insight has a 0,25 drag coefficient. The lack of a rear seat causes the body to taper just behind the driver and is 110 mm (about 4.3 inches) narrower than the front track on the backchannel. The CVT-equipped Insight is rated as a vehicle with super low emissions. The Insight has low emissions: the California Air Resources Board gave a ULEV rating to the 5-speed model. The CVT model received a SULEV rating. The 5-speed lean-burn ability of the model traded improved efficiency for marginally higher NOx emissions.

Fuel efficiency

For the period of its production run and until December 2015, when the 2016 Toyota Prius Eco surpassed it, the first-generation Insight was the most fuel-efficient gasoline-powered car available in the U.S. without plug-in capability.

The Insight received an EPA fuel economy estimate of 70 mpg-US (3.4 L/100 km) in driving at the highway, 61 mpg-US (3.9 L/100 km) city. It was 68 mpg-US with air conditioning (3.5 L/100 km; 82 mpg-imp) and 60 mpg-US (3.9 L/100 km; 72 mpg-imp). It was 57 mpg-US with a CVT (4.1 L/100 km; 68 mpg-imp)/56 mpg-US (4.2 L/100 km; 67 mpg-imp).

The model that began in 2008, the EPA modified the way it measured fuel efficiency. Under the new test, the revised fuel economy ratings for the 2000 Insight with manual shift 5-speed are 61 mpg-US (3.9 L/100 km; 73 mpg-imp) in driving at the highway, 49 mpg-US (4.8 L/100 km; 59 mpg-imp) city, and 53 mpg-US (4.4 L/100 km; 64 mpg-imp) city/highway combined.

Insight with CVT mileage display

To reach full travel distance with each refueling, Insight owners who are “hypermilers” compete. Honda challenged several automotive magazines to compete following the Insight’s publication to see who could get the best fuel economy on the 195-mile (314 km) drive from Columbus, Ohio to Detroit. Car and Driver magazine, which wired a box behind a Ford Excursion, won the contest and had the Intuition drive within the box’s confines.

The fuel efficient Insight made the trip with fuel consumption of 121.7 miles per U.S. gallon (1.933 L/100 km; 146.2 mpg-imp), with far less wind resistance, while averaging 58 miles per hour (93 km/h). A two-year test of an air conditioning Insight powered 40,000 miles (64,000 km) averaged 48 miles (4.9 L/100 km; 58 mpg-imp) per U.S. gallon. “obviously if you drive the car badly, you will get lousy mileage. “you will get terrible mileage if you drive your car badly.

Fuel Efficient Honda Insight
Fuel Efficient Honda Insight

The Insight obtained a combined performance figure of 69.2 mpg-US (3.40 L/100 km; 83.1 mpg-imp) in the E.U. fuel-economy tests, with an extra-urban model of 78.4 mpg-US (3.00 L/100 km; 94.2 mpg-imp) and an urban figure of 57.4 mpg-US (4.10 L/100 km; 68.9 mpg-imp). This remains unbeaten in the U.K. market for a patrol car. Two emissions figures of 80 g/km, which is still the lowest of any U.K. market car.

Sales and prices by country
In 2009, Honda sold 130,445 Insights globally. A Honda executive reported that Honda manufactured about 200,000 hybrids a year in Japan in an interview at the beginning of February 2011. In November 2013, the Insight was removed from the website of Honda Canada. It was removed from sale in the U.K. in mid-2014.

In Japan, the new fuel efficient Insight started sales on February 6, 2009. The reception in Japan surpassed Honda’s initial estimate of 5,000 monthly sales. This resulted in less exposure to overseas markets, and to boost production from 700 units a day, Honda had to start production on a second line at its Suzuki plant in mid-June.

One of The Best Selling Car

It became the first petrol-electric hybrid to be the best-selling car for the month in Japan in April 2009. In 2009, Honda sold 93,283 Insight in Japan after less than eleven months on sale, ranking it to the 5th best-selling car for the year. In March 2010, Honda revealed that the new Insight had broken by 100,000 sales in the Japanese market in just one year after its release.
United States
U.S. U.S. Honda Insight, with front, back, and hybrid badges displayed. The car went on sale in the U.S. as a 2010 model on March 24, 2009, making it the least costly hybrid vehicle available in the United States.

Insight’s overall sales in the U.S. market for 2009 were 20,572 units within less than ten months of its launch, selling more than a Fusion Hybrid (15,554 units) and the Toyota Prius (139,682 units and the Civic Hybrid (15,119), but behind the Camry Hybrid (22,887 units) and).

Sales in the U.S. are below estimate, mostly due to the economic crisis in 2008-09, healthy competition and a decline in petrol prices of more than one-third over the past year, eroded demand for fuel-efficient vehicles.

Sales Improvenment

In December 2010,the fuel efficient did to further improve sales, Honda launched a less costly Insight hybrid for the 2011 model year. Center armrests, cruise control, USB connectivity for the audio system, and floor mats are newly introduced for the 2011 LX model.

Across all trim levels, electronic stability control and brake assist became standard. All models come with automatic climate control. “to make (it) more affordable for those younger customers who couldn’t previously get into a hybrid. To make (the car) more affordable for those younger customers who were not once able to get into a mixture.
United Kingdom
The Honda Insight has been on sale since April 4, 2009, and early reports said it outsold its rival by 15 %. The Insight is no longer excluded from the charge for London congestion. Revised suspension should boost ride and handle from autumn 2010, and parking sensors are added to the E.S. model and higher trim levels.

Fuel Efficient Honda Insight

Beginning in December 2010, the Insight was introduced in Australia as the lowest-priced hybrid vehicle. Its price was lower than the Toyota Prius and the Civic Hybrid.
Its fuel efficiency and fuel economy is rated as 4.6 L/100 km (61 mpg-imp; 51 mpg-US). “For Australia, unless you’re tapped into a green power source, its benefits are negligible” Honda challenges the green credentials of electric vehicles when energy is generated from coal-fired power stations.

The Netherlands
Since the Insight launch in April 2009, Honda has sold 2,661 units as of March 2010, 847 of which were sold in the first three months of 2010. The Honda Insight has been excluded from road tax since January 2010. Together with those of the Honda Civic Hybrid, the Honda Insight sales helped Honda achieve its best deals result in the Netherlands since 1989.

Republic of Ireland
Between 2009 and 2015, ‘motor stats’ (beep-beep. i.e.) by the Society of the Irish Motor Industry (SIMI) revealed that Honda Insights had 306 ‘Complete New Registrations’ (including 27 and 5 in 2014 & 2015 respectively) with a high of 108 in 2010 (10 in 2009). In 2013, the ‘Refreshed’ model (new front, etc.) became available. The retail price for the S.E. alternative in 2014 was EUR 23,495, and the E.S. was EUR 24,610.

Other Asian countries
In October 2010, the Insight was introduced in Korea as the lowest-priced hybrid car sold by imported car manufacturers.
In dec, 2010, at the Kuala Lumpur International Motor Show (KLIMS) 2010, Honda launched Malaysia’s Insight.

Presently, it’s the third generation in use. The third-generation Honda Insight concept debuted at North American International Auto Show, and the production was unveiled at New York International Auto Show in 2018.

It is based on the tenth generation fuel efficient Honda Civic sedan and shares identical exterior and interior dimensions all over (although the Insight is about one inch longer than its non-hybrid counterpart).

Third Generation

The new fuel efficient Insight uses the third-generation that is two-motor hybrid powertrain from Honda. Featuring a 1.5-liter gasoline engine is exclusively be paired with an electric motor and also a lithium-ion battery pack, operating on the Atkinson cycle.

The fuel efficient Insight also shares the same trunk space as the 10th-generation Honda Civic Sedan, as the Insight batteries do not impede the space of the trunk. The completely digital LCD instrument cluster was taken from the larger Honda Accord, 2018. The tenth-generation Honda Civic Sedan, manufactured at the same Greensburg, Indiana plant as the all-new Insight, took away many interior styling features.


Compared with the 51/45/48 MPG fuel economy ratings at the Touring trim level, Honda predicts a 55 MPG city, 49 MPG highway fuel economy, and 52 MPG combined rating for the 2019 Insight LX and EX trim levels. The fuel economy disparity between the versions is due to the higher weight and the Touring version’s added equipment. As the Green Car of the Year, it had the most praise in 2019.

Recent Insight

For 2021, the 2021 Insight now has a traditional blind-spot monitoring scheme instead of the Lane Watch rear-facing camera system previously available on EX and Touring models. When it detects something in the car’s blind spot on either side, it illuminates a warning light, while on the passenger’s side, the old Lane Watch device only offered a blind-spot view. There is also a new color called metallic Radiant Red.

When it detects something in the car’s blind spot on either side, it illuminates a warning light, while on the passenger’s side, the old Lane Watch device only offered a blind-spot view. There is also a new color called metallic Radiant Red.

Fuel Efficient Honda Insight 2021

Fuel Efficiency
The Insight does a better job of combining spry acceleration with horrible fuel economy than most hybrids. The fuel efficient Hybrid rivals, that are tested are just as fast as many compact cars with traditional power and far faster.

The combination of electric motors and a gas engine provides a combined capacity of 151 horsepower, inspiring the Insight in 7.7 seconds from zero to 60 mph. It will run on its electric motor alone at lower speeds for approximately one mile but ask for brisk acceleration, and the gasoline engine can kick in smoothly.


You might hear that the engine is getting noisy under hard acceleration, but the Insight’s powertrain is otherwise quiet and refined. The Perspective is a delightful vehicle to drive. It is soft, calm, and polished, and it works safely. That’s no wonder because it’s mechanically identical in many respects to the Civic sedan, which shares those characteristics.

The Insight has a beautifully balanced ride and firm handling, although it’s not overtly sporty. Its versatile suspension well soaks up bumps, and its fast steering makes it responsively shift direction. Little of the chunkiness’ plagues other hybrids’ brakes suffer from the consistent and progressive brake pedal in the Insight.