2020 Hyundai Sonata Hybrid vs. 2020 Mazda 6

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/04/01

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Sonata Hybrid are reminded to check the back seat if they opened the rear door before starting out. The Mazda 6 doesn’t offer a back seat reminder.

Over 200 people are killed each year when backed over by motor vehicles. The Sonata Hybrid Limited has standard Reverse Collision-Avoidance Assist that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Mazda 6 doesn’t offer backup collision prevention brakes.

The Sonata Hybrid’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Mazda 6 doesn’t offer a driver alert monitor.

Both the Sonata Hybrid and the Mazda 6 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.

Warranty

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The Sonata Hybrid comes with a full 5-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The 6’s 3-year/36,000-mile basic warranty expires 2 years and 24,000 miles sooner.

Hyundai’s powertrain warranty covers the Sonata Hybrid 5 years and 40,000 miles longer than Mazda covers the 6. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the Mazda 6 ends after only 5 years or 60,000 miles.

The Sonata Hybrid’s corrosion warranty is 2 years longer than the Mazda 6’s (7 vs. 5 years).

Hyundai pays for scheduled maintenance on the Sonata Hybrid for 3 years and 30,000 miles. Hyundai will pay for oil changes, lubrication and any other required maintenance. Mazda doesn’t pay scheduled maintenance for the 6.

There are over 48 percent more Hyundai dealers than there are Mazda dealers, which makes it easier should you ever need service under the Sonata Hybrid’s warranty.

Reliability

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J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Hyundai vehicles are better in initial quality than Mazda vehicles. J.D. Power ranks Hyundai third in initial quality, above the industry average. With 23 more problems per 100 vehicles, Mazda is ranked 12th, below the industry average.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Hyundai vehicles are more reliable than Mazda vehicles. J.D. Power ranks Hyundai 8th in reliability, above the industry average. With 35 more problems per 100 vehicles, Mazda is ranked 21st.

Engine

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The Sonata Hybrid’s 2.0 DOHC 4-cylinder hybrid produces 5 more horsepower (192 vs. 187) and 85 lbs.-ft. more torque (271 vs. 186) than the Mazda 6’s standard 2.5 DOHC 4-cylinder.

Fuel Economy and Range

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On the EPA test cycle the Sonata Hybrid gets better fuel mileage than the Mazda 6:

MPG

Sonata Hybrid

Blue 2.0 4-cyl. Hybrid

50 city/54 hwy

2.0 4-cyl. Hybrid

45 city/51 hwy

Mazda 6

2.5 DOHC 4-cyl.

26 city/35 hwy

2.5 turbo 4-cyl.

23 city/31 hwy

To lower fuel costs and make buying fuel easier, the Hyundai Sonata Hybrid uses regular unleaded gasoline. The Mazda 6 Grand Touring/Signature requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Hyundai Sonata Hybrid higher (7 out of 10) than the Mazda 6 (3 to 7). This means the Sonata Hybrid produces up to 24.5 pounds less smog-producing pollutants than the Mazda 6 every 15,000 miles.

Brakes and Stopping

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For better stopping power the Sonata Hybrid’s standard brake rotors are larger than those on the Mazda 6:

Sonata

6

Front Rotors

12 inches

11.7 inches

Rear Rotors

11.2 inches

10.9 inches

The Sonata Hybrid’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Mazda 6 are solid, not vented.

Suspension and Handling

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For better handling and stability, the average track (width between the wheels) on the Sonata Hybrid is 1.8 inches wider in the front and 1.8 inches wider in the rear than the average track on the Mazda 6.

For better maneuverability, the Sonata Hybrid’s turning circle is .6 feet tighter than the Mazda 6’s (36.1 feet vs. 36.7 feet).

Chassis

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The design of the Hyundai Sonata Hybrid amounts to more than styling. The Sonata Hybrid has an aerodynamic coefficient of drag of .24 Cd. That is significantly lower than the Mazda 6 (.285) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the Sonata Hybrid get better fuel mileage.

Passenger Space

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Because it has more passenger and cargo room, the EPA rates the Sonata Hybrid a Large car, while the Mazda 6 is rated a Mid-size.

The Sonata Hybrid has 4.7 cubic feet more passenger volume than the Mazda 6 (104.4 vs. 99.7).

The Sonata Hybrid has 1.6 inches more front headroom, 3.9 inches more front legroom, 1.1 inches more front hip room, 2 inches more front shoulder room, 1.3 inches more rear headroom, .9 inches more rear hip room and 1 inch more rear shoulder room than the Mazda 6.

Cargo Capacity

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The Sonata Hybrid has a much larger trunk than the Mazda 6 (16 vs. 14.7 cubic feet).

A standard locking glovebox keeps your small valuables safer in the Sonata Hybrid. The Mazda 6 doesn’t offer locking storage for small valuables.

To make loading groceries and cargo easier when your hands are full, just waiting momentarily behind the back bumper can open the Sonata Hybrid’s trunk, leaving your hands completely free. The Mazda 6 doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Servicing Ease

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The Sonata Hybrid uses gas struts to support the hood for easier service access. The Mazda 6 uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.

Ergonomics

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The power windows standard on both the Sonata Hybrid and the Mazda 6 have locks to prevent small children from operating them. When the lock on the Sonata Hybrid is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Mazda 6 prevents the driver from operating the other windows just as it does the other passengers.

When the Sonata Hybrid Limited is put in reverse, both rearview mirrors tilt from their original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirrors into their original positions. The Mazda 6’s mirrors don’t automatically adjust for backing.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Hyundai Sonata Hybrid SEL/Limited has a standard wireless phone charging system (Qi) in the center console. The Mazda 6 doesn’t offer wireless personal charging.

Recommendations

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/04/01

The Hyundai Sonata outsold the Mazda 6 by over four to one during 2019.

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