2015 Mercedes-Benz SL Class vs 2015 Porsche 911

2015 Mercedes-Benz SL Class

2015 Porsche 911

Select style

2-Door Roadster SL 400

Style	MPG City	MPG Hwy	Invoice	MSRP
2-Door Roadster SL 400	20	27	$78,120	$84,000
2-Door Roadster SL 550	17	24	$99,417	$106,900
2-Door Roadster SL 63 AMG	16	25	$137,687	$148,050
2-Door Roadster SL 65 AMG	14	21	$200,183	$215,250

Select style

2-Door Coupe Carrera

Style	MPG City	MPG Hwy	Invoice	MSRP
2-Door Coupe Carrera	19	27	N/A	$84,300
2-Door Coupe Carrera 4	19	27	N/A	$91,030
2-Door Cabriolet Carrera	19	27	N/A	$96,200
2-Door Coupe Carrera S	19	27	N/A	$98,900
2-Door Targa 4	18	26	N/A	$101,600
2-Door Cabriolet Carrera 4	19	26	N/A	$102,930
2-Door Coupe Carrera 4S	18	26	N/A	$105,630
2-Door Cabriolet Carrera S	19	27	N/A	$110,800
2-Door Coupe Carrera GTS	18	26	N/A	$114,200
2-Door Targa 4S	18	26	N/A	$116,200
2-Door Cabriolet Carrera 4S	18	26	N/A	$117,530
2-Door Coupe Carrera 4 GTS	18	26	N/A	$120,900
2-Door Cabriolet Carrera GTS	18	25	N/A	$126,100
2-Door Coupe GT3	15	20	N/A	$130,400
2-Door Cabriolet Carrera 4 GTS	18	25	N/A	$132,800
2-Door Coupe Turbo	17	24	N/A	$151,100
2-Door Cabriolet Turbo	17	24	N/A	$163,000
2-Door Coupe Turbo S	17	24	N/A	$182,700
2-Door Cabriolet Turbo S	17	24	N/A	$194,600

Show Only Differences

Pricing

Invoice Price

$78,120

N/A

Manufacturer Suggested Retail Price

$84,000

$84,300

Monthly Payment Estimate

$1400 / month

$1405 / month

The Car Connection's Take

TCC Rating

8.2

Read Our Full Review

9.0

Read Our Full Review

TCC’s Bottom Line

The 2015 Mercedes-Benz SL-Class is sportier than its predecessor, but still manages to coddle its occupants just as before.

The 2015 Porsche 911 is an enthusiast's dream, with excellent handling, comfort, and performance at every step through its range.

TCC Likes

Twin-turbo V-8's exceptional surge
New V-6 model
Wide but supportive seats

Performance ranges from great to fantastic
Modern take on classic good looks
Comfortable, quiet interior

TCC Dislikes

ABC not as easy as 1-2-3
Less storage space behind seats
B&O bass isn't there

Electric power steering feel isn't quite 100%
Can get expensive in a hurry
Rear seat is cramped

Fuel Economy

City

20 mpg

19 mpg

Highway

27 mpg

Vehicle

EPA Classification

Two-Seaters

Minicompact Cars

Interior Dimensions

Front Leg Room (in)

42.9

Front Hip Room (in)

53.6

Passenger Capacity

Front Head Room (in)

39.1

Front Shoulder Room (in)

55.5

Exterior Dimensions

Track Width, Rear (in)

59.8

Wheelbase (in)

101.8

96.5

Width, Max w/o mirrors (in)

73.9

71.2

Track Width, Front (in)

62.9

60.3

Length, Overall (in)

181.6

176.8

Height, Overall (in)

51.8

51.3

Cargo Area Dimensions

Trunk Volume (ft³)

8.5

Brakes

Disc - Rear (Yes or )

Yes

Rear Brake Rotor Diam x Thickness (in)

12.6

Brake Type

4-Wheel Disc

Rear Drum Diam x Width (in)

Disc - Front (Yes or )

Yes

Front Brake Rotor Diam x Thickness (in)

14.2

Drum - Rear (Yes or )

Brake ABS System

4-Wheel

Fuel Tank

Fuel Tank Capacity, Approx (gal)

19.8

16.9

Steering

Steering Type

Rack-Pinion

Turning Diameter - Curb to Curb (ft)

36.2

36.4

Tires

Front Tire Order Code

Spare Tire Order Code

Rear Tire Size

P285/35YR18

P285/35YR19

Rear Tire Order Code

Front Tire Size

P255/40YR18

P235/40YR19

Spare Tire Size

Wheels

Rear Wheel Size (in)

18 X 9.5

19 X 11

Front Wheel Material

Aluminum

Spare Wheel Material

Front Wheel Size (in)

18 X 8.5

19 X 8.5

Spare Wheel Size (in)

Rear Wheel Material

Aluminum

Engine

Displacement

3.0 L/183

3.4 L/210

SAE Net Horsepower @ RPM

329 @ 5250

350 @ 7400

Engine Type

Twin Turbo Premium Unleaded V-6

Premium Unleaded H-6

Fuel System

Gasoline Direct Injection

SAE Net Torque @ RPM

354 @ 1600

287 @ 5600

Engine Order Code

Mileage

Fuel Economy Est-Combined (MPG)

EPA Fuel Economy Est - Hwy (MPG)

EPA Fuel Economy Est - City (MPG)

Transmission

Final Drive Axle Ratio (:1)

2.65

3.44

Third Gear Ratio (:1)

1.92

1.55

Trans Type

Seventh Gear Ratio (:1)

0.73

0.71

Fifth Gear Ratio (:1)

1.00

1.08

Trans Description Cont. Again

Drivetrain

Rear Wheel Drive

Reverse Ratio (:1)

3.42

3.55

Second Gear Ratio (:1)

2.86

2.29

Trans Order Code

427

487

Fourth Gear Ratio (:1)

1.37

1.30

Trans Description Cont.

Automatic w/OD

Manual w/OD

Sixth Gear Ratio (:1)

0.82

0.88

First Gear Ratio (:1)

4.38

3.91

Summary

Vehicle Name

Mercedes-Benz SL-Class

Porsche 911

Body Style

Roadster

Coupe

Suspension

Suspension Type - Rear

Multi-Link

Suspension Type - Rear (Cont.)

Multi-Link

Suspension Type - Front

Multi-Link

Strut

Suspension Type - Front (Cont.)

Multi-Link

Strut

Weight Information

Base Curb Weight (lbs)

3042

Electrical

Maximum Alternator Capacity (amps)

175

Cold Cranking Amps @ 0° F (Primary)

450

Emissions

Tons/yr of CO2 Emissions @ 15K mi/year

8.0

Get FREE Dealer Quotes

From dealers near you

Go!

Compare 2015 Mercedes-Benz SL Class vs 2015 Porsche 911

Get FREE Dealer Quotes

Add a Vehicle to Compare