BMW 3.0-liter turbocharged I6

BMW's B58 engine made the list last year, and it does again thanks to a bump in power.

Published:Caption:Photo:BMW

BMW 3.0-liter turbocharged I6

You'll find this one tucked under the hood of the BMW M240i (formerly known as the M235i).

Published:Caption:Photo:BMW

Chevrolet 1.5-liter I4 + Electric Powertrain

Chevrolet's extended-range electric powertrain is yet another entrant that appeared on previous lists.

Published:Caption:Photo:Chevrolet

Chevrolet 1.5-liter I4 + Electric Powertrain

This one lives inside the second-generation Chevrolet Volt, which is a much sleeker car than its forebear.

Published:Caption:Photo:Tim Stevens/Roadshow

Chrysler 3.6-liter V6 + Hybrid-Electric Powertrain

A newcomer to the WardsAuto list, this is Chrysler's first hybrid minivan powertrain.

Published:Caption:Photo:Chrysler

Chrysler 3.6-liter V6 + Hybrid-Electric Powertrain

The Chrysler Pacifica Hybrid also happens to be the first hybrid minivan ever built, with an EPA-estimated 84 MPGe.

Published:Caption:Photo:Wayne Cunningham/Roadshow

Ford 2.3-liter turbocharged I4

Turbochargers aren't just for thrift, they're also for fun, as evidenced in this new entry to the WardsAuto list.

Published:Caption:Photo:Nick Miotke/Roadshow

Ford 2.3-liter turbocharged I4

The Focus RS that houses this four-banger is a real stunner, too.

Published:Caption:Photo:Nick Miotke/Roadshow

Honda 2.0-liter I4 + Hybrid-Electric Powertrain

The Accord Hybrid's powertrain is the only traditional hybrid to make the list this year.

Published:Caption:Photo:Honda

Honda 2.0-liter I4 + Hybrid-Electric Powertrain

Several reviewers have recorded real-world fuel economy estimates north of 50 mpg with this bad boy.

Published:Caption:Photo:Antuan Goodwin/Roadshow

Hyundai 1.4-liter turbocharged I4

Hyundai's Kappa four-cylinder engine delivers big fuel economy figures for relatively little money.

Published:Caption:Photo:Hyundai

Hyundai 1.4-liter turbocharged I4

Living inside the Elantra Eco, it only costs about $22,000 to get up to 40 mpg.

Published:Caption:Photo:Hyundai

Infiniti 3.0-liter turbocharged V6

Another newcomer this year is Infiniti's 3.0-liter VR-series V6.

Published:Caption:Photo:Infiniti

Infiniti 3.0-liter turbocharged V6

When living inside the Q50 or Q60, the engine can put out either 300 horsepower or 400, depending on the buyer's preferences.

Published:Caption:Photo:Jon Wong/Roadshow

Mazda 2.5-liter turbocharged I4

This engine marks the first time Mazda mixed its Skyactiv engine tech and a turbocharger.

Published:Caption:Photo:Mazda

Mazda 2.5-liter turbocharged I4

The result, as seen in the CX-9 crossover, is V6-like torque with four-banger fuel economy.

Published:Caption:Photo:Mazda

Mercedes-Benz 2.0-liter turbocharged I4

WardsAuto added this Mercedes four-pot to the list for its peak torque, which starts at just 1,300 RPM, yet it returns nearly 30 mpg.

Published:Caption:Photo:Mercedes-Benz

Mercedes-Benz 2.0-liter turbocharged I4

You can find this engine in several variations of Mercedes-Benz product, like the C300, C300 Coupe, C300 Cabriolet and E300.

Published:Caption:Photo:Mercedes-Benz

Volvo 2.0-liter turbocharged and supercharged I4

What happens when you mix Volvo's excellent twin-charged motor with a bigger turbo and beefier supporting parts? You end up on this list, that's what happens.

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Volvo 2.0-liter turbocharged and supercharged I4

This supercharged and turbocharged masterpiece lives inside Volvo's hopped-up V60 Polestar.

Published:Caption:Photo:Volvo
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