2019 Mazda MX-5 Miata vs. 2019 Porsche 718 Boxster

Detailed Review, Specifications & Comparison

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Safety

The MX-5 Miata’s optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The 718 Boxster doesn’t offer a lane departure warning system.

To help make backing safer, the MX-5 Miata’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The 718 Boxster doesn’t offer a cross-path warning system.

Both the MX-5 Miata and the 718 Boxster have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes and blind spot warning systems.

Warranty

Mazda’s powertrain warranty covers the MX-5 Miata 1 year and 10,000 miles longer than Porsche covers the 718 Boxster. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the 718 Boxster ends after only 4 years or 50,000 miles.

There are over 3 times as many Mazda dealers as there are Porsche dealers, which makes it much easier should you ever need service under the MX-5 Miata’s warranty.

Reliability

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the MX-5 Miata’s reliability 41 points higher than the 718 Boxster.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Mazda vehicles are more reliable than Porsche vehicles. Consumer Reports ranks Mazda third in reliability. Porsche is ranked 11th.

Fuel Economy and Range

On the EPA test cycle the MX-5 Miata gets better fuel mileage than the 718 Boxster:

 

 

 

MPG

MX-5 Miata

 

Manual

2.0 DOHC 4 cyl.

26 city/34 hwy

 

Auto

2.0 DOHC 4 cyl.

26 city/35 hwy

718 Boxster

 

Manual

2.0 turbo 4 cyl.

21 city/28 hwy

 

 

S 2.0 turbo 4 cyl.

20 city/26 hwy

 

 

GTS 2.5 turbo 4 cyl.

19 city/25 hwy

 

Auto

2.0 turbo 4 cyl.

22 city/29 hwy

 

 

S 2.0 turbo 4 cyl.

21 city/28 hwy

 

 

GTS 2.5 turbo 4 cyl.

20 city/26 hwy

To lower fuel costs and make buying fuel easier, the Mazda MX-5 Miata uses regular unleaded gasoline (premium recommended for maximum performance). The 718 Boxster requires premium, which can cost 20 to 55 cents more per gallon.

Suspension and Handling

The MX-5 Miata’s front to rear weight distribution is more even (50.4% to 49.6%) than the 718 Boxster’s (45.5% to 54.5%). This gives the MX-5 Miata more stable handling and braking.

For better maneuverability, the MX-5 Miata’s turning circle is 5.3 feet tighter than the 718 Boxster’s (30.8 feet vs. 36.1 feet).

Chassis

The Mazda MX-5 Miata may be more efficient, handle and accelerate better because it weighs about 600 to 650 pounds less than the Porsche 718 Boxster.

The MX-5 Miata is 1 foot, 6.3 inches shorter than the 718 Boxster, making the MX-5 Miata easier to handle, maneuver and park in tight spaces.

The MX-5 Miata's optional power retractable hardtop allows a seamless transition from an open car, to a completely sealed coupe. The 718 Boxster doesn’t offer a retractable hardtop.

Ergonomics

The MX-5 Miata’s standard power windows have a locking feature to keep children from operating them. Porsche does not offer a locking feature on the 718 Boxster’s standard power windows.

Consumer Reports rated the MX-5 Miata’s headlight performance “Good,” a higher rating than the 718 Boxster’s headlights, which were rated “Fair.”

Recommendations

Consumer Reports® recommends both the Mazda MX-5 Miata and the Porsche 718 Boxster, based on reliability, safety and performance.

J.D. Power and Associates rated the MX-5 Miata second among compact sporty cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The 718 Boxster isn’t in the top three.

The MX-5 Miata was chosen as one of Automobile Magazine’s “All Stars” for 8 of the last 25 years. The 718 Boxster hasn’t been picked since 2014.

The Mazda MX-5 Miata outsold the Porsche Boxster by over four to one during 2018.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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