Compare 2011 Mercedes-Benz SL Class vs 2011 Porsche 911

2011 Mercedes-Benz SL Class
2011 Porsche 911
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2-Door Roadster SL 550
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster SL 550 13 21 $95,418 $102,600
2-Door Roadster SL 63 AMG 12 19 $129,316 $139,050
2-Door Roadster SL 65 AMG 11 18 $184,838 $198,750
Select style
2-Door Coupe Carrera
Style MPG City MPG Hwy Invoice MSRP
2-Door Coupe Carrera 18 25 $69,840 $77,800
2-Door Coupe Carrera 4 18 24 $75,510 $84,100
2-Door Cabriolet Carrera 18 26 $79,740 $88,800
2-Door Coupe Carrera S 18 25 $81,270 $90,500
2-Door Targa 4 18 25 $82,710 $92,100
2-Door Cabriolet Carrera 4 18 25 $85,410 $95,100
2-Door Coupe 4S 18 25 $86,940 $96,800
2-Door Cabriolet Carrera S 18 26 $91,170 $101,500
2-Door Coupe Carrera GTS 18 25 $92,610 $103,100
2-Door Targa 4S 18 18 $94,140 $104,800
2-Door Cabriolet Carrera 4S 17 25 $96,840 $107,800
2-Door Cabriolet Carrera GTS 18 26 $101,430 $112,900
2-Door Coupe GT3 14 21 $103,950 $115,700
2-Door Coupe GT3 RS 14 21 $121,770 $135,500
2-Door Coupe Turbo 16 24 $121,770 $135,500
2-Door Cabriolet Turbo 16 24 $131,940 $146,800
2-Door Coupe S Turbo 17 25 $144,450 $160,700
2-Door Cabriolet S Turbo 16 24 $154,710 $172,100
2-Door Coupe GT3 RS 4.0 14 21 $166,320 $185,000
2-Door Speedster 19 26 $183,420 $204,000
2-Door Coupe GT2 RS 16 23 $228,325 $245,000
Pricing
Invoice Price
$95,418
$69,840
Manufacturer Suggested Retail Price
$102,600
$77,800
Monthly Payment Estimate
$1710 / month
$1297 / month
The Car Connection's Take
TCC Rating
8.4
9.2
TCC’s Bottom Line
The 2011 Mercedes-Benz SL-Class can be a luxury grand tourer and a high-energy exotic, all at once, if you order properly. You'll be dazzled by the 2011 Porsche 911's unending driving joy, and maybe stunned by its passenger comfort and even its fuel economy.
TCC Likes
TCC Dislikes
Fuel Economy
City
13 mpg 18 mpg
Highway
21 mpg 25 mpg
Vehicle
EPA Classification
2 Seater Mini-Compact
Interior Dimensions
Front Head Room (in)
37.7 - TBD -
Front Shoulder Room (in)
54.0 - TBD -
Passenger Volume (ft³)
50.5 - TBD -
Front Leg Room (in)
42.9 - TBD -
Passenger Capacity
2 4
Front Hip Room (in)
56.9 - TBD -
Second Shoulder Room (in)
- - TBD -
Second Leg Room (in)
- - TBD -
Second Hip Room (in)
- - TBD -
Second Head Room (in)
- - TBD -
Exterior Dimensions
Min Ground Clearance (in)
- TBD - - TBD -
Length, Overall (in)
180.4 175.8
Height, Overall (in)
51.1 51.6
Track Width, Rear (in)
60.5 60.4
Wheelbase (in)
100.8 92.5
Liftover Height (in)
- TBD - - TBD -
Width, Max w/o mirrors (in)
81.4 71.2
Track Width, Front (in)
61.4 58.5
Cargo Area Dimensions
Trunk Volume (ft³)
10.2 (7.2 w/top down) 4.4
Brakes
Front Brake Rotor Diam x Thickness (in)
13.8 x 1.3 13.0 x 1.1
Drum - Rear (Yes or )
NA NA
Brake ABS System
4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes
Rear Brake Rotor Diam x Thickness (in)
12.6 x 0.9 13.0 x 1.1
Brake Type
Pwr Pwr
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
21.1 16.9
Steering
Turning Diameter - Wall to Wall (ft)
- TBD - N/A
Steering Ratio (:1), Overall
- TBD - - TBD -
Turning Diameter - Curb to Curb (ft)
36.2 - TBD -
Steering Type
Pwr Rack & Pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
2.6 - TBD -
Tires
Rear Tire Size
P285/35R18 P265/40ZR18
Rear Tire Order Code
NA NA
Front Tire Size
P255/40R18 P235/40ZR18
Spare Tire Size
Compact NA
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Trailering
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA - TBD -
Dead Weight Hitch - Max Tongue Wt. (lbs)
- TBD - - TBD -
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA - TBD -
Dead Weight Hitch - Max Trailer Wt. (lbs)
- TBD - - TBD -
Weight Information
Base Curb Weight (lbs)
4220 3186
Wheels
Spare Wheel Material
- TBD - NA
Front Wheel Size (in)
18 x 8.5 18 x 8.0
Spare Wheel Size (in)
- TBD - NA
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
18 x 9.5 18 x 10.5
Front Wheel Material
Aluminum Aluminum
Cooling System
Total Cooling System Capacity (qts)
- TBD - - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary)
- TBD - - TBD -
Maximum Alternator Capacity (amps)
- TBD - NA
Engine
Fuel System
SFI Electronic Fuel Injection
SAE Net Torque @ RPM
391 @ 2800-4000 288 @ 4400
Engine Order Code
NA NA
Displacement
5.5L/333 3.6L/219
SAE Net Horsepower @ RPM
382 @ 6000 345 @ 6500
Engine Type
Gas V8 Gas Flat 6-cyl
Mileage
Fuel Economy Est-Combined (MPG)
16 21
EPA Fuel Economy Est - Hwy (MPG)
21 25
EPA Fuel Economy Est - City (MPG)
13 18
Transmission
Sixth Gear Ratio (:1)
0.82 0.88
First Gear Ratio (:1)
4.38 3.91
Clutch Size (in)
NA 9.5
Third Gear Ratio (:1)
1.92 1.56
Trans Type
7 6
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1)
1.00 1.08
Trans Description Cont. Again
NA NA
Reverse Ratio (:1)
3.42 (R2 2.23) 3.59
Second Gear Ratio (:1)
2.86 2.32
Seventh Gear Ratio (:1)
0.73 NA
Trans Order Code
NA NA
Final Drive Axle Ratio (:1)
- TBD - 3.44
Fourth Gear Ratio (:1)
1.37 1.28
Trans Description Cont.
Automatic w/OD Manual
Summary
Vehicle Name
Mercedes-Benz SL-Class Porsche 911
Body Style
2 Door Convertible Coupe
Suspension
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD -
Suspension Type - Front (Cont.)
4-Link w/Coil Springs
Shock Absorber Diameter - Front (mm)
- TBD - - TBD -
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD -
Suspension Type - Rear
Independent Multi-Link
Suspension Type - Rear (Cont.)
5-Arm Multi-Link w/Coil Springs
Shock Absorber Diameter - Rear (mm)
- TBD - - TBD -
Suspension Type - Front
Independent MacPherson Strut
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
11.0 8.7
EPA Greenhouse Gas Score
3 -

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