Certified Benz & Beemer Compares 2015 Porsche Panamera VS 2015 Mercedes S-Class Near Phoenix, AZ

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2015 Porsche Panamera

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VS

2015 Mercedes S-Class

Safety Comparison

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Both the Panamera and the S-Class have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, front parking sensors, available crash mitigating brakes, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty Comparison

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The Panamera’s corrosion warranty is 6 years and unlimited miles longer than the S-Class’ (10/unlimited vs. 4/50,000).

Reliability Comparison

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J.D. Power and Associates rated the Panamera first among large premium cars in their 2014 Initial Quality Study. The S-Class isn’t in the top three.

J.D. Power and Associates’ 2014 Initial Quality Study of new car owners surveyed provide the statistics that show that Porsche vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks Porsche first in initial quality, above the industry average. With 41 more problems per 100 vehicles, Mercedes is ranked 13th.

Engine Comparison

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As tested in Car and Driver the Panamera Turbo is faster than the S600:

Panamera

S-Class

Zero to 60 MPH

3.3 sec

4.7 sec

Zero to 100 MPH

8.2 sec

10.6 sec

5 to 60 MPH Rolling Start

4.1 sec

5.1 sec

Quarter Mile

11.7 sec

13.1 sec

Speed in 1/4 Mile

119 MPH

112 MPH

Top Speed

193 MPH

130 MPH

As tested in Motor Trend the Panamera GTS is faster than the S550:

Panamera

S-Class

Zero to 60 MPH

4.1 sec

4.7 sec

Quarter Mile

12.7 sec

13.2 sec

Fuel Economy and Range Comparison

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On the EPA test cycle the Panamera S E-Hybrid running its gasoline engine gets better fuel mileage than the S550 Auto RWD (23 city/29 hwy vs. 17 city/26 hwy).

On the EPA test cycle the Panamera gets better fuel mileage than the S-Class:

Panamera

S-Class

2WD

Base/Auto

18 city/28 hwy

n/a

S/Auto

17 city/27 hwy

17 city/26 hwy

S550/Auto

n/a

13 city/21 hwy

S600/Auto

n/a

13 city/20 hwy

S65 AMG/Auto

AWD

Base/Auto

18 city/27 hwy

n/a

S/Auto

17 city/27 hwy

16 city/26 hwy

S550/Auto

GTS/Auto

16 city/24 hwy

n/a

Turbo/Auto

15 city/24 hwy

15 city/24 hwy

S63 AMG/Auto

The Panamera S E-Hybrid can drive on battery power alone for up to 16 miles. The S-Class must run its internal combustion engine to move.

Regenerative brakes improve the Panamera’s fuel efficiency by converting inertia back into energy instead of wasting it. The S-Class doesn’t offer a regenerative braking system.

The Panamera’s optional fuel tank has 4.5 gallons more fuel capacity than the S-Class (26.4 vs. 21.9 gallons).

Brakes and Stopping Comparison

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The Panamera stops much shorter than the S-Class:

Panamera

S-Class

70 to 0 MPH

155 feet

171 feet

Car and Driver

60 to 0 MPH

104 feet

119 feet

Motor Trend

Suspension and Handling Comparison

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For better handling and stability, the average track (width between the wheels) on the Panamera is 2.3 inches wider in the front and 2.1 inches wider in the rear than the track on the S-Class.

The Panamera Turbo 4 handles at 1.03 G’s, while the S550 pulls only .83 G’s of cornering force in a Motor Trend skidpad test.

The Panamera Turbo 4 executes Motor Trend’s “Figure Eight” maneuver 2.8 seconds quicker than the S550 (23.7 seconds @ .87 average G’s vs. 26.5 seconds @ .7 average G’s).

For better maneuverability, the Panamera S E-Hybrid’s turning circle is 1 foot tighter than the S550/S600’s (39 feet vs. 40 feet). The Panamera’s turning circle is 1.7 feet tighter than the S63 AMG 4MATIC’s (39.3 feet vs. 41 feet).

Chassis Comparison

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The Porsche Panamera may be more efficient, handle and accelerate better because it weighs about 400 to 750 pounds less than the Mercedes S-Class.

The Panamera is 9.1 inches shorter than the S-Class, making the Panamera easier to handle, maneuver and park in tight spaces. The Panamera Executive is 3.1 inches shorter than the S-Class.

Cargo Capacity Comparison

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The Panamera’s standard rear seats fold to accommodate long and bulky cargo. The S-Class doesn’t offer folding rear seats.

Ergonomics Comparison

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The Panamera offers a remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The S-Class doesn’t offer a remote starting system.

The Panamera’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 S-Class does not have an oil pressure gauge.

To improve rear visibility by keeping the rear window clear, the Panamera offers an optional rear wiper. The S-Class doesn’t offer a rear wiper.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Panamera has standard headlight washers to keep headlight output high. The S-Class doesn’t offer headlight washers.

Economic Advantages Comparison

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Insurance will cost less for the Panamera owner. The Complete Car Cost Guide estimates that insurance for the Panamera will cost $2080 less than the S-Class over a five-year period.

The Panamera will cost the buyer less in the long run because of its superior resale value. The Intellichoice estimates that the Panamera will retain 42.28% to 47.33% of its original price after five years, while the S-Class only retains 34.79% to 38.62%.

Intellichoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Porsche Panamera will be $20079 to $37101 less than for the Mercedes S-Class.

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