2019 Buick Regal TourX vs. 2018 Mazda 3

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 2020/07/10

The Regal TourX has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Mazda 3 doesn’t offer all-wheel drive.

Both the Regal TourX and the Mazda 3 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, rear parking sensors and rear cross-path warning.

The Buick Regal TourX weighs 608 to 974 pounds more than the Mazda 3. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts. Crosswinds also affect lighter cars more.

Warranty

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The Regal TourX comes with a full 4-year/50,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The 3’s 3-year/36,000-mile basic warranty expires 1 year and 14,000 miles sooner.

Buick’s powertrain warranty covers the Regal TourX 1 year and 10,000 miles longer than Mazda covers the 3. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the Mazda 3 ends after only 5 years or 60,000 miles.

The Regal TourX’s corrosion warranty is 1 year longer than the Mazda 3’s (6 vs. 5 years).

Buick pays for the first scheduled maintenance on the Regal TourX. Buick will pay for the first oil change, lubrication and any other required maintenance in the first year. Mazda doesn’t pay scheduled maintenance for the 3.

There are over 3 times as many Buick dealers as there are Mazda dealers, which makes it much easier should you ever need service under the Regal TourX’s warranty.

Reliability

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J.D. Power and Associates’ 2017 Initial Quality Study of new car owners surveyed provide the statistics that show that Buick vehicles are better in initial quality than Mazda vehicles. J.D. Power ranks Buick 13th in initial quality, above the industry average. With 30 more problems per 100 vehicles, Mazda is ranked 27th, below the industry average.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Buick vehicles are more reliable than Mazda vehicles. J.D. Power ranks Buick third in reliability, above the industry average. With 28 more problems per 100 vehicles, Mazda is ranked 14th.

From surveys of all its subscribers, Consumer Reports’ April 2018 Auto Issue reports that Buick vehicles are more reliable than Mazda vehicles. Consumer Reports ranks Buick 4 places higher in reliability than Mazda.

Engine

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The Regal TourX’s 2.0 turbo 4 cyl. produces 95 more horsepower (250 vs. 155) and 145 lbs.-ft. more torque (295 vs. 150) than the Mazda 3 Sport’s standard 2.0 DOHC 4 cyl. The Regal TourX’s 2.0 turbo 4 cyl. produces 63 more horsepower (250 vs. 187) and 109 lbs.-ft. more torque (295 vs. 186) than the Mazda 3 Touring/Grand Touring’s standard 2.5 DOHC 4 cyl.

As tested in Motor Trend the Buick Regal TourX is faster than the Mazda 3 (automatics tested):

 

Regal

Mazda3 2.0

Mazda3 2.5

Zero to 30 MPH

2.1 sec

2.9 sec

n/a

Zero to 60 MPH

6.3 sec

8.4 sec

7.4 sec

Zero to 80 MPH

10.6 sec

14.3 sec

n/a

Passing 45 to 65 MPH

3.4 sec

4.2 sec

n/a

Quarter Mile

14.7 sec

16.4 sec

15.6 sec

Speed in 1/4 Mile

94.7 MPH

85.7 MPH

91 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 2020/07/10

In heavy traffic or at stoplights the Regal TourX’s 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 3 doesn’t offer an automatic engine start/stop system.

The Regal TourX has 3.1 gallons more fuel capacity than the Mazda 3 (16.3 vs. 13.2 gallons), for longer range between fill-ups.

The Regal TourX has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Mazda 3 doesn’t offer a cap-less fueling system.

Transmission

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The Buick Regal TourX comes standard with an automatic transmission, for driver comfort, especially in the city. Automatic costs extra on the Mazda 3.

An eight-speed automatic is standard on the Buick Regal TourX, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the Mazda 3.

Brakes and Stopping

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For better stopping power the Regal TourX’s brake rotors are larger than those on the Mazda 3:

 

Regal

Mazda 3 2.0

Mazda 3 2.5

Front Rotors

12.6 inches

11.02 inches

11.61 inches

Rear Rotors

11.3 inches

10.43 inches

10.43 inches

The Regal TourX stops shorter than the Mazda 3:

 

Regal

Mazda 3

 

70 to 0 MPH

175 feet

182 feet

Car and Driver

60 to 0 MPH

118 feet

126 feet

Motor Trend

Tires and Wheels

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For better traction, the Regal TourX has larger tires than the Mazda 3 (235/50R18 vs. 205/60R16). The Regal TourX’s tires are larger than the largest tires available on the Mazda 3 (235/50R18 vs. 215/45R18).

The Regal TourX’s tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the Mazda 3 Sport’s standard 60 series tires.

For better ride, handling and brake cooling the Regal TourX has standard 18-inch wheels. Smaller 16-inch wheels are standard on the Mazda 3 Sport.

Suspension and Handling

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For a smoother ride and more stable handling, the Regal TourX’s wheelbase is 5.1 inches longer than on the Mazda 3 (111.4 inches vs. 106.3 inches).

For better handling and stability, the track (width between the wheels) on the Regal TourX is 1.6 inches wider in the front and 1.6 inches wider in the rear than on the Mazda 3.

The Regal TourX’s front to rear weight distribution is more even (58.2% to 41.8%) than the Mazda 3’s (59.6% to 40.4%). This gives the Regal TourX more stable handling and braking.

The Regal TourX Essence handles at .88 G’s, while the Mazda 3 Grand Touring 5-Door pulls only .83 G’s of cornering force in a Motor Trend skidpad test.

The Regal TourX Essence executes Motor Trend’s “Figure Eight” maneuver quicker than the Mazda 3 Grand Touring 5-Door (26.2 seconds @ .69 average G’s vs. 27 seconds @ .64 average G’s).

Chassis

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The Regal TourX uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Mazda 3 doesn’t offer active noise cancellation.

As tested by Car and Driver, the interior of the Regal TourX Essence is quieter than the Mazda 3 5-Door:

 

Regal TourX

3

Full-Throttle

69 dB

77 dB

70 MPH Cruising

65 dB

70 dB

Passenger Space

© 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 2020/07/10

The Regal TourX has 2.6 cubic feet more passenger volume than the Mazda 3 5-Door (99 vs. 96.4).

The Regal TourX has .2 inches more front headroom, 2 inches more rear headroom, 1.1 inches more rear legroom, .6 inches more rear hip room and 1 inch more rear shoulder room than the Mazda 3.

Cargo Capacity

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The Regal TourX has a much larger cargo area with its rear seat up than the Mazda 3 5-Door with its rear seat up (32.7 vs. 20.2 cubic feet). The Regal TourX has a much larger trunk with its rear seat folded than the Mazda 3 5-Door with its rear seat folded (73.5 vs. 47.1 cubic feet).

To make loading and unloading groceries and cargo easier when your hands are full, the Regal TourX Essence’s power liftgate can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The Mazda 3 doesn’t offer a power or hands-free opening trunk.

Servicing Ease

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The Regal TourX uses gas struts to support the hood for easier service access. The Mazda 3 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 Buick service is better than Mazda. J.D. Power ranks Buick 9th in service department satisfaction (above the industry average). With a 64% lower rating, Mazda is ranked 27th.

Ergonomics

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When two different drivers share the Regal TourX Essence, the optional memory seats and mirrors make it convenient for both. Each setting activates different, customized memories for the driver’s seat position and outside mirror angle. The Mazda 3 doesn’t offer a memory system.

The Regal TourX Essence’s optional easy entry system glides the driver’s seat back when the door is unlocked or the ignition is switched off, making it easier for the driver to get in and out. The Mazda 3 doesn’t offer an easy entry system.

The Regal TourX’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The Mazda 3 has neither an oil pressure gauge nor a temperature gauge.

The power windows standard on both the Regal TourX and the Mazda 3 have locks to prevent small children from operating them. When the lock on the Regal TourX is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Mazda 3 prevents the driver from operating the other windows just as it does the other passengers.

The Regal TourX’s front and rear power windows all open fully with one touch of the switches and its front windows also automatically close, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Mazda 3’s passenger windows don’t open or close automatically.

The Regal TourX has a standard automatic headlight on/off feature. When the ignition is on, the headlights automatically turn on at dusk and off after dawn. When the ignition turns off, the headlights turn off after a delay timed to allow you to securely get to your front door. The Mazda 3 only offers an automatic headlight on/off feature as an extra cost option.

The Regal TourX’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. Mazda charges extra for heated mirrors on the Mazda 3.

When the Regal TourX Essence with available tilt-down mirrors 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 3’s mirrors don’t automatically adjust for backing.

The Regal TourX Essence offers optional automatic dimming rear and side view mirrors which automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Mazda 3 offers an automatic rear view mirror, but its side mirrors don’t dim.

Both the Regal TourX and the Mazda 3 offer rear vents. For greater rear passenger comfort, the Regal TourX has standard rear air conditioning vents to keep rear occupants cool in summer or warm in winter. The Mazda 3 doesn’t offer rear air conditioning vents, only heat vents.

The Regal TourX’s available GPS navigation system has a real-time traffic update feature that plots alternative routes to automatically bypass traffic problems. (Service not available in all areas.) The Mazda 3’s available navigation system doesn’t offer real-time traffic updates.

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