Most Fuel-Efficient Car - Honda Insight

Fuel economy is one of the most important factors to consider when buying a new car. Even when gas prices are down, they won't stay that way forever.

Many cars sold today offer impressive fuel economy, especially in contrast to what you may be trading in. Below, we spotlight the most fuel-efficient cars based on Consumer Reports' overall fuel-economy test results.

Measuring fuel economy is one of more than 50 tests we conduct on each car we purchase. Our fuel-economy numbers are derived from a precision flow meter and are rounded to the nearest mile per gallon. CR's overall mileage results are calculated based on equal portions of city and highway driving.

Complete test results can be found by clicking through to the model pages.

See our list of the 10 most fuel-efficient SUVs.


Honda Insight

Honda Insight

The Insight is a fuel economy champ with its 54 mpg overall in our tests, two better than the Toyota Prius. Based on the Civic sedan, the Insight has the same strengths, including a comfortable ride, secure but mundane handling and a relatively roomy rear seat. But its very low stance makes it a challenge to get in or out. The driver's seat is short on lower back support. The controls are somewhat tricky including a fussy gear selector. The car can move on electric power alone at very low speeds but when the gas engine awakes as more power is needed, it's loud. Standard advanced safety systems include forward-collision warning and automatic emergency braking, but there's no proper blind spot-warning system.

Read the complete Honda Insight road test

Make & Model

Overall MPG

City MPG

Highway MPG

Honda Insight

54

44

62


Toyota Prius

Toyota Prius

In our tests the Prius returned 52 mpg overall, a significant improvement over the previous generation's 44 mpg. Plus the new car handles more responsively and rides more comfortably. Colorful digital gauges dominate the dashboard with plenty of fuel-economy information. The touch-screen infotainment system is fairly straightforward.

A sensible choice, the Prius has always been touted for its efficiency and low operating costs. The car can drive solely on electric power, usually up to about 25 mph, and the engine is now quieter when it kicks in. But the seats have mediocre support, tire noise is noticeable, and it can be a challenge to get into and out of the vehicle because of the car's lower stance. Forward-collision warning (FCW) and automatic emergency braking (AEB) are standard.

Read the complete Toyota Prius road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Toyota Prius Three

52

43

59


Hyundai Ioniq

Hyundai Ioniq

The Ioniq is the first worthy challenger to the Toyota Prius. Evoking the Prius silhouette and hatchback configuration, this hybrid matches the Toyota as a fuel sipper with 52 mpg overall. Power comes from a 1.6-liter four-cylinder engine which, paired with the electric drive, puts out a combined 139 hp. The six-speed dual-clutch transmission isn't the smoothest, and there's some delay accelerating from a standstill. Like other hybrids, it can drive on electric power at low speeds.

Its handling lacks agility, but the ride is reasonable for the class. Our test car had unusually long stopping distances for the class, at 144 feet from 60 mph. A number of safety features, including AEB and blind-spot warning, are available. Android Auto and Apple CarPlay compatibility are standard. There are also plug-in and fully electric versions available.

Read the complete Hyundai Ioniq road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Hyundai Ioniq

52

42

60


Toyota Prius Prime

Toyota Prius Prime

The Prime is a plug-in Prius that can usually drive about 23 miles on electricity only. But the gas engine tends to start up in cold weather and under full-throttle acceleration. It takes 2 hours to charge the Prius Prime through a 240-volt connector and 5 hours on a regular 120-volt home outlet. When not running in EV mode, the Prime operates much like the regular Prius, alternating between electric and gas power, returning 50 mpg overall.

With styling that's slightly different from that of the regular Prius, the Prime can hold only four passengers, and it loses the rear wiper. The infotainment system, with its large touch screen, is unintuitive to use. The compliant ride and responsive handling are quite similar to those of the regular Prius. Standard safety features include AEB and lane-keep assist.

Read the complete Toyota Prius Prime road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Toyota Prius Prime

133*/50**

38**

62**

  1. * = MPGe, ** = MPG on gas engine only

Honda Accord

Most Fuel-Efficient Cars - Honda Accord

The Accord has a coupelike silhouette and a lower stance. Two turbocharged four-cylinder engines are available. The base version is a 1.5-liter that's shared with the Honda CR-V SUV and the Civic compact car. The new 192-hp engine is mated to a continuously variable transmission, a combination that is mostly unobtrusive and delivers adequate power. The uplevel turbocharged 2.0-liter brings 252 hp and a slick 10-speed automatic transmission but features an unintuitive push-button gear selector. The Hybrid gets an impressive 47 mpg overall without sacrificing acceleration.

The new infotainment system is a big improvement and includes knobs for tuning and volume adjustment. Handling is responsive, and the ride is comfortable. Standard safety equipment includes FCW, AEB, lane-departure warning, and lane-keeping assist.

Read the complete Honda Accord road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Honda Accord Hybrid EX

47

40

52


Toyota Camry

Toyota Camry Hybrid

The redesigned Camry brings snazzier styling and slightly more nimble handling while retaining its comfortable, quiet demeanor. It again stands out as one of the best midsized sedans. The lower stance makes access a bit more difficult, and the rear seat has lost some roominess. The standard 2.5-liter four-cylinder engine provides ample power and gets an impressive 32 mpg overall. A 3.5-liter V6 is also available. Both are paired to a new eight-speed automatic transmission that isn't super-smooth. A very frugal hybrid LE gets 47 mpg overall without any sacrifice in trunk space.

The Entune infotainment system is capable but lacks Android Auto or Apple CarPlay compatibility. Standard safety equipment includes FCW and AEB, but blind-spot warning is optional.

Read the complete Toyota Camry road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Toyota Camry Hybrid

47

39

53


Toyota Prius C

Toyota Prius C

This smaller, less expensive alternative to the regular Prius feels like a spartan subcompact with a hybrid powertrain. In the end, you pretty much get what you pay for, and it is no substitute for the real Prius. The C has a harsh ride, a noisy engine, and slow acceleration. But its 37 mpg in city driving makes the Prius C one of the most frugal vehicles we've tested, and its 43 mpg overall is just 1 mpg less than the previous-generation Prius hatchback.

The interior looks and feels cheap, the driving position and rear seats are cramped, and there's little cargo space. Its tiny dimensions make it a natural for urban driving. AEB is standard. Note that 2019 is the final year for the Prius C.

Read the complete Toyota Prius C road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Toyota Prius C Two

43

37

48


Kia Niro

Kia Niro

Kia's five-passenger Niro marries good fuel economy with cargo versatility. This front-wheel-drive hybrid uses a 1.6-liter four-cylinder engine, which, in conjunction with the electric drive unit, puts out a combined 139 hp. This combo is mated to a six-speed dual-clutch transmission. Having the lithium-ion battery under the rear seat creates a flat cargo floor when the rear seats are folded. We got 43 mpg overall, which is good but not as impressive as the Hyundai Ioniq or Toyota Prius.

The handling lacks agility, and the ride can get choppy on bumpy pavement and toss occupants around. The optional power driver seat provides better support than the standard seats. A suite of advanced safety features is available, including AEB, blind-spot warning, and rear cross-traffic warning, but that tends to push the price above $30,000. 

Read the complete Kia Niro road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Kia Niro EX

43

33

52


Toyota Avalon

Toyota Avalon

Toyota's flagship Avalon sedan is roomy, rides comfortably, and has easy-to-use controls, which makes it a pleasant large car. The 3.5-liter V6 engine gained 33 hp over its prior version and is linked to an eight-speed automatic transmission. The hybrid version has a 2.5-liter four-cylinder engine that yields 42 mpg overall, impressive for such a large sedan.

Its ride comfort is excellent; it is plusher than most Lexus models. The cabin is quiet and lavishly furnished, particularly with the Limited trim. Its handling is responsive and secure, but it can be hard to get in or out of it because of the car's low stance. The infotainment system includes a 9-inch touch screen that's easy to use. This is the first Toyota to offer Apple CarPlay. Android Auto is not available. Standard safety equipment includes FCW and AEB.

Read the complete Toyota Avalon road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Toyota Avalon Hybrid XLE

42

32

52


Chevrolet Malibu

Chevrolet Malibu Hybrid

Swoopy styling and modern powertrains are highlights of Chevrolet's Malibu. The car is competitive among midsized sedans, with a quiet cabin and easy-to-use controls. In tests we found the Malibu to be quiet, with a comfortable ride and responsive handling. Two four-cylinder turbo engines are offered: a 1.5-liter with a six-speed automatic—which got 29 mpg in our tests—and a more powerful and refined 2.0-liter backed by an eight-speed automatic. A hybrid, using some of the Chevrolet Volt's technology, is also available. That got an impressive 41 mpg overall in our tests.

Up front is a roomy, comfortable cockpit and an updated version of Chevrolet's MyLink infotainment system. But the cloth seats are a bit short on support. The rear seat is roomy, so long-legged passengers can stretch out.

Read the complete Chevrolet Malibu Hybrid road test.

Make & Model

Overall MPG

City MPG

Highway MPG

Chevrolet Malibu Hybrid

41

33

49