2019 Porsche 718 Boxster vs. 2019 BMW 8 Series

Detailed Review, Specifications & Comparison

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Safety

Both the 718 Boxster and the 8 Series 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.

Reliability

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Porsche vehicles are better in initial quality than BMW vehicles. J.D. Power ranks Porsche fourth in initial quality, above the industry average. With 8 more problems per 100 vehicles, BMW is ranked 11th.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Porsche vehicles are more reliable than BMW vehicles. J.D. Power ranks Porsche second in reliability, above the industry average. With 27 more problems per 100 vehicles, BMW is ranked 8th.

Engine

The flat cylinder configuration of the boxer engine in the 718 Boxster lowers its center of gravity, enhancing handling stability. The 8 Series doesn’t offer a boxer engine configuration.

Fuel Economy and Range

On the EPA test cycle the 718 Boxster gets better fuel mileage than the 8 Series Convertible:

 

 

Boxster

8 Series

 

 

2.0 turbo 4 cyl./Manual

21 city/28 hwy

n/a

 

 

S 2.5 turbo 4 cyl./Manual

20 city/26 hwy

n/a

 

 

GTS 2.5 turbo 4 cyl./Manual

19 city/25 hwy

n/a

 

 

2.0 turbo 4 cyl./Auto

22 city/29 hwy

17 city/26 hwy

4.4 twin turbo V8

 

S 2.5 turbo 4 cyl./Auto

21 city/28 hwy

n/a

 

 

GTS 2.5 turbo 4 cyl./Auto

20 city/26 hwy

n/a

 

Transmission

The 718 Boxster offers a manual transmission for better acceleration, control and fuel economy. The 8 Series doesn’t offer a manual transmission.

The 718 Boxster offers an optional 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 8 Series doesn’t offer an SMG.

Brakes and Stopping

The 718 Boxster offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The 8 Series doesn’t offer ceramic brake rotors.

Suspension and Handling

For better maneuverability, the 718 Boxster’s turning circle is 2.9 feet tighter than the 8 Series’ (36.1 feet vs. 39 feet).

Chassis

The Porsche 718 Boxster may be more efficient, handle and accelerate better because it weighs about 1550 to 1600 pounds less than the BMW 8 Series.

The 718 Boxster is 1 foot, 6.8 inches shorter than the 8 Series, making the 718 Boxster easier to handle, maneuver and park in tight spaces.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Porsche service is better than BMW. J.D. Power ranks Porsche second in service department satisfaction. With a 17% lower rating, BMW is ranked 8th.

Ergonomics

In case of a sudden change of weather, the 718 Boxster has a standard remote convertible top that can be raised from a distance to protect the interior of the vehicle from damage. The 8 Series doesn’t offer a remote top, so the driver will have to run to the car, get in, turn the ignition on and raise the top to prevent the interior from being damaged.

Recommendations

Consumer Reports® recommends the Porsche 718 Boxster, based on reliability, safety and performance.

The Boxster was chosen as one of Car and Driver’s “Top Ten” for 14 of the last 14 years. The 8 Series has never been a Car and Driver “Top Ten” pick.

The 718 Boxster was chosen as one of Automobile Magazine’s “All Stars” for 10 of the last 19 years. The 8 Series has never been an “All Star.”

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

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