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2014 Mazda 3: Gas Mileage Review Of Sporty Compact Hatchback

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Auto writers tend to like Mazdas; they generally perform and handle well, and are far more fun to drive than the anodyne Fords, Hondas, and Toyotas that outsell them in the compact and mid-size categories.

The newest crop of Mazda cars and crossovers, built around the company's highly fuel-efficient SkyActiv engines and transmissions, have also delivered very good real-world fuel economy without turbochargers or hybrid-electric powertrains.

So we were looking forward to our weekend test drive of the all-new Mazda 3 five-door, the latest iteration of the company's compact hatchback.

We'd driven a 2014 Mazda 3 briefly last November, but not for long enough to draw any conclusions about fuel economy.

MORE: 2013 Mazda CX-5 & 2012 Mazda3: Real-World Gas Mileage Boost From SkyActiv Engine

Sadly--unlike our experience with an earlier 2012 Mazda 3 updated with the SkyActive powertrain, and the 2013 Mazda CX-5 that was the first vehicle designed around that powertrain--our Mazda 3 test car didn't even match its EPA ratings.

2014 Mazda Mazda3

2014 Mazda Mazda3

Enlarge Photo

The version we tested, a 2014 Mazda 3 S Grand Touring five-door, comes with the larger of two engines, a 184-horsepower 2.5-liter four-cylinder that produces 185 lb-ft of torque. It was fitted with the six-speed automatic transmission designed specifically to work with the SkyActiv engines.

In that guise, the car was rated at 32 mpg combined (28 mpg city, 38 mpg highway).

We registered only 30.9 mpg on the car's trip computer over 277 miles of our usual test cycle, which is roughly two-thirds highway and one-third city and suburban stop-and-go. That's a cycle on which, frankly, we'd have expected the car to do better than its combined rating.

Part of the difference may have been due to 10 or 15 miles experimenting with the Mazda 3's "Sport" mode, which turns a decent but unremarkable performer into a more eager, hot-hatch-like street fighter (although nowhere near the MazdaSpeed 3 hot-rod models of the past).

In Normal mode, the Mazda 3's engine stays well below 2000 rpm under most circumstances, even under modest acceleration. That's good for gas mileage, but doesn't exactly make the car leap ahead as you might expect from the "Zoom Zoom" brand.

2014 Mazda Mazda3

2014 Mazda Mazda3

Enlarge Photo

The Sport mode holds the transmission in lower gears longer, for better response, remaps the throttle curve for better performance, and certainly makes the car far more responsive.

But it's clearly lousy for gas mileage--we watched our cumulative 150-mile average drop in successive tenths over just 10 miles of roaring around country roads in Sport mode--and it highlights the penalty of using the performance from more powerful engines.

MORE: 2014 Mazda 3 - full review

The car's styling is definitely distinctive, with a rising window line and a roof line that drops down. It took us awhile, but we finally figured out that from the rear it reminded us of an Infiniti EX, and from the side a bit like a Lexus CT--both premium vehicles, so points to Mazda for that.

The roofline, however, clearly helps reduce aerodynamic drag but makes for lousy rear visibility. The rear window is shallow, like that of the Lexus CT, though not overly blocked by the rear-seat headrests, but the pillars create huge blind spots.


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