2020 Mercedes A-Class 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 2020/02/26

For enhanced safety, the front and rear seat shoulder belts of the Mercedes A-Class have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Mazda 6 doesn’t offer pretensioners for the rear seat belts.

The A-Class’ optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Mazda 6 doesn’t offer pre-crash pretensioners.

The A-Class offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Mazda 6 doesn’t offer all-wheel drive.

The A-Class’ 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 A-Class and the Mazda 6 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front-wheel drive, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

© 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 2020/02/26

The A-Class comes with a full 4-year/50,000-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 1 year and 14,000 miles sooner.

Reliability

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J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Mazda vehicles. J.D. Power ranks Mercedes 13th in reliability, above the industry average. With 25 more problems per 100 vehicles, Mazda is ranked 21st.

Engine

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The A-Class’ 2.0 turbo 4-cylinder produces 1 more horsepower (188 vs. 187) and 35 lbs.-ft. more torque (221 vs. 186) than the Mazda 6’s standard 2.5 DOHC 4-cylinder.

As tested in Car and Driver the Mercedes A-Class is faster than the Mazda 6:

A-Class

6 4 cyl.

Mazda 6 Grand Touring/Signature

Zero to 60 MPH

6.1 sec

7.3 sec

6.4 sec

Zero to 100 MPH

16.9 sec

20.9 sec

16 sec

5 to 60 MPH Rolling Start

6.8 sec

7.5 sec

6.7 sec

Quarter Mile

14.7 sec

15.8 sec

14.9 sec

Speed in 1/4 Mile

94 MPH

89 MPH

97 MPH

Fuel Economy and Range

© 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 2020/02/26

On the EPA test cycle the A 220 FWD Auto gets better fuel mileage than the Mazda 6 Grand Touring/Signature turbo 4 cyl. (24 city/35 hwy vs. 23 city/31 hwy).

In heavy traffic or at stoplights the A-Class’ engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The Mazda 6 doesn’t offer an automatic engine start/stop system.

Transmission

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A seven-speed automatic (SMG) is standard on the Mercedes A-Class, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the Mazda 6.

The A-Class offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The Mazda 6 doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

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For better stopping power the A-Class’ brake rotors are larger than those on the Mazda 6:

A-Class

6

Front Rotors

12.6 inches

11.7 inches

Rear Rotors

11.6 inches

10.9 inches

The A-Class stops much shorter than the Mazda 6:

A-Class

Mazda 6

70 to 0 MPH

153 feet

184 feet

Car and Driver

60 to 0 MPH

130 feet

133 feet

Consumer Reports

60 to 0 MPH (Wet)

134 feet

141 feet

Consumer Reports

Tires and Wheels

© 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 2020/02/26

The A-Class’ optional tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Mazda 6 Touring/Grand Touring/Signature’s 45 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the A-Class can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Mazda 6 doesn’t offer run-flat tires.

Suspension and Handling

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The A-Class offers an optional driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The Mazda 6’s suspension doesn’t offer adjustable shock absorbers.

The A-Class’ drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The Mazda 6 doesn’t offer drift compensation steering.

The A 220 4MATIC handles at .95 G’s, while the Mazda 6 Signature pulls only .81 G’s of cornering force in a Car and Driver skidpad test.

The A 220 executes Motor Trend’s “Figure Eight” maneuver 1.1 seconds quicker than the Mazda 6 Touring (26.5 seconds @ .68 average G’s vs. 27.6 seconds @ .62 average G’s).

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

Chassis

© 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 2020/02/26

The A-Class is 1 foot, 1.6 inches shorter than the Mazda 6, making the A-Class easier to handle, maneuver and park in tight spaces.

The design of the Mercedes A-Class amounts to more than styling. The A-Class has an aerodynamic coefficient of drag of .27 Cd. That is lower than the Mazda 6 (.285) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the A-Class get better fuel mileage.

Passenger Space

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The A-Class has 1.9 inches more front headroom and .1 inches more rear headroom than the Mazda 6.

Cargo Capacity

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A low lift-over trunk design makes loading and unloading the A-Class easier. The A-Class’ trunk lift-over height is 26.1 inches, while the Mazda 6’s liftover is 28.5 inches.

A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the A-Class. The Mazda 6 doesn’t offer locking storage for small valuables.

To make loading groceries and cargo easier when your hands are full, the A-Class’ available trunk can be opened just by kicking your foot under the back bumper, 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 A-Class 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.

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Mazda. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 59% lower rating, Mazda is ranked 25th.

Ergonomics

© 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 2020/02/26

Unlike the driver-only memory seat in the Mazda 6 Grand Touring Reserve/Signature, the A-Class has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The A-Class’ standard easy entry system glides the driver’s seat back, making it easier for the driver to get in and out. The Mazda 6 doesn’t offer an easy entry system.

The power windows standard on both the A-Class and the Mazda 6 have locks to prevent small children from operating them. When the lock on the A-Class 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.

If the windows are left open on the A-Class the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the Mazda 6 can only operate the windows from inside the vehicle, with the ignition on.

The A-Class’ power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Mazda 6’s power lock and power mirror switches are unlit, making them difficult to find at night and operate safely.

The A-Class’ standard outside mirrors include heating elements to clear off the mirrors for better visibility. Mazda only offers heated mirrors on the Mazda 6 Grand Touring/Signature.

When the A-Class is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Mazda 6’s mirror doesn’t automatically adjust for backing.

Both the A-Class and the Mazda 6 offer rear vents. For greater rear passenger comfort, the A-Class has standard rear air conditioning vents to keep rear occupants cool in summer or warm in winter. The Mazda 6 doesn’t offer rear air conditioning vents, only heat vents.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes A-Class offers an optional wireless phone charging system (Qi) in the center console. The Mazda 6 doesn’t offer wireless personal charging.

The A-Class’ optional Active Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Mazda 6 doesn’t offer an automated parking system.

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