2017 Wards 10 Best Engines Winners

3.0L turbocharged I-6 under hood of BMW M240i.

BMW M240i test model.

Driver can quickly dial up more performance or efficiency in BMW M240i.

'17 Chevrolet Volt.

Volt one of two returning winners on this year's list.

Volt's central display screen loaded with information about energy use.

Chrysler Pacifica Hybrid topped 40 mpg during our evaluations.

Chrysler Pacifica Hybrid transmission can be switched to low to capture more braking energy.

'17 Chrysler Pacifica Hybrid test vehicle.

With 350 hp, Ford Focus RS tester was driven aggressively.

Cutaway of 2.3L turbo-4 in Ford Focus RS.

Ford Focus RS test vehicle.

Even without being driven conservatively, Honda Accord Hybrid racked up impressive fuel economy.

Honda Accord Hybrid test vehicle.

2.0L Atkinson-cycle 4-cyl. under hood of Honda Accord Hybrid.

Hyundai Elantra Eco test vehicle.

Least-expensive vehicle making list, Hyundai Elantra Eco is both fun to drive and efficient.

1.4L turbo-4 in Hyundai Elantra Eco.

With 400 hp, Infiniti Q50 still capable of 23.5 mpg.

Infiniti Q50 test vehicle.

3.0L twin-turbo V-6 under hood of Infiniti Q50.

Skyactiv 2.5L turbo-4 in 7-passenger Mazda CX-9 delivered impressive 23.4 mpg.

Skyactiv 2.5L turbo-4 under hood of Mazda CX-9.

Mazda CX-9 test vehicle.

2.0L turbo-4 under hood of Mercedes C300.

Mercedes C300 impressive for refinement, power deliver and fuel efficiency.

Mercedes C300 test vehicle.

2.0L turbo/supercharged 4-cyl. in Volvo V60 Polestar.

Volvo V60 Polestar test vehicle.

Volvo V60 Polestar's 362-hp 4-cyl. loves upper reaches of tachometer.

Volvo V60 Polestar's 362-hp 4-cyl. loves upper reaches of tachometer.