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2014 Mazda 3 and 2014 Infiniti Q50 Rated by the EPA

Mazda’s newest compact gets a 40mpg highway rating.

The EPA released fuel economy ratings for the 2014 Mazda 3 five-door and the 2014 Infiniti Q50 sport sedan.

Although Mazda says it cannot yet confirm ratings for the 2014 Mazda 3 five-door, the EPA says the 2014 Mazda 3 with the 155hp, 2.0-liter Skyactiv four-cylinder engine is rated at 30/40mpg city/highway when equipped with the six-speed automatic transmission and 29/40mpg city/highway when equipped with the six-speed manual transmission. Combined ratings are 33mpg regardless of transmission choice.

Interestingly, this falls short of Mazda’s 41mpg highway target, which Mazda says it maintains despite these government ratings. Since these ratings are for the five-door model only, it could be that only the sedan model will achieve the 41mpg highway rating.

There is no official word yet on ratings of the 184hp, 2.5-liter Skyactiv four-cylinder engine that will also be available in the 3 although Mazda said it targets 40mpg highway for the 2.5-liter engine with the i-ELOOP regenerative braking system. The larger Mazda 6 equipped with the same powertrain was recently rated at 40mpg highway so the smaller 3 should easily achieve the same number.

Regardless of engine choice, the 2014 Mazda 3’s 40mpg highway rating is competitive in the compact segment. Other models are able to achieve the magic 40mpg number, but only with special fuel economy packages like the 2013 Ford Focus SFE, 2013 Chevrolet Cruze Eco, and 2013 Nissan Sentra FE.

The 2014 Infiniti Q50 with the 3.7-liter V-6 and a seven-speed automatic is rated at 20/30/23 mpg city/highway/combined in rear-wheel-drive form for the base model. Trim levels other than the base, including Premium and Sport, lose one mile per gallon on the highway for a 20/29mpg rating. All-wheel-drive models are rated at 19/28/22mpg city/highway/combined regardless of trim level.

The EPA has not yet released fuel economy ratings for the 2014 Infiniti Q50 Hybrid. Even so, ratings of the 328hp, 3.7-liter V-6 model put the Q50 near the top of the class, behind only the BMW 335i with its 23/33 city/highway rating and 300-hp, 3.0-liter turbocharged inline six-cylinder engine mated to an eight-speed automatic transmission.

Check out the charts below to see how the 2014 Infiniti Q50 and 2014 Mazda 3 stack up against the competition.

Source: EPA via FuelEconomy.gov

  • Engine
  • HP
  • Transmission
  • Drive
  • Price
  • MPG city/highway/combined
  • 2014 Infiniti Q50
  • 3.7L V-6
  • 328
  • Seven-speed auto
  • rear-wheel
  •  $ 37,355
  • 20/30/23
  • 2014 Lexus IS350
  • 3.5L V-6
  • 306
  • Eight-speed auto
  • rear-wheel
  •  $ 40,360
  • 19/28/22
  • 2014 Cadillac ATS 3.6
  • 3.6L V-6
  • 321
  • Six-speed auto
  • rear-wheel
  •  $ 42,090
  • 18/28/22
  • 2014 Mercedes-Benz C350 Sport
  • 3.5L V-6
  • 302
  • Seven-speed auto
  • rear-wheel
  •  $ 42,305
  • 20/29/24
  • 2013 BMW 335i
  • 3.0L turbo I-6
  • 300
  • Eight-speed auto
  • rear-wheel
  •  $ 44,045
  • 23/33/26
  • Engine
  • HP
  • Transmission
  • Base Price
  • MPG city/highway/combined
  • 2014 Mazda 3 5-door
  • 2.0L I-4
  • 155
  • Six-speed auto
  • N/A
  • 30/40/33
  • 2013 Nissan Sentra
  • 1.8L I-4
  • 130
  • CVT
  • $16,780
  • 30/39/34
  • 2013 Honda Civic
  • 1.8L I-4
  • 140
  • Five-speed auto
  • $19,755
  • 28/39/32
  • 2013 Ford Focus 5-door
  • 2.0L I-4
  • 160
  • Six-speed dual-clutch
  • $20,755
  • 27/38/31
  • 2014 Chevrolet Cruze
  • 1.4L turbo I-4
  • 138
  • Six-speed auto
  • $20,635
  • 26/38/30

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