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Compare 2011 Mercedes-Benz SL Class vs 2011 Porsche 911

2011 Mercedes-Benz SL Class Change
2011 Porsche 911 Change
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Selected Style 2-Door Roadster SL550
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Body Style

Trim

Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster SL550 13 21 $95,418 $102,600
2-Door Roadster SL63 AMG 12 19 $129,316 $139,050
2-Door Roadster SL65 AMG 11 18 $184,838 $198,750
2-Door Coupe Carrera
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Body Style

Trim

Other

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 Coupe Carrera S 18 25 $81,270 $90,500
2-Door Coupe 4S 18 25 $86,940 $96,800
2-Door Coupe GT3 14 21 $103,950 $115,700
2-Door Coupe Turbo 16 24 $121,770 $135,500
2-Door Coupe S Turbo 17 25 $144,450 $160,700
2-Door Coupe GT3 RS 14 21 $121,770 $135,500
2-Door Targa 4 18 25 $82,710 $92,100
2-Door Targa 4S 18 18 $94,140 $104,800
2-Door Cabriolet Carrera 18 26 $79,740 $88,800
2-Door Cabriolet Carrera 4 18 25 $85,410 $95,100
2-Door Cabriolet Carrera S 18 26 $91,170 $101,500
2-Door Cabriolet Carrera 4S 17 25 $96,840 $107,800
2-Door Cabriolet Turbo 16 24 $131,940 $146,800
2-Door Cabriolet S Turbo 16 24 $154,710 $172,100
2-Door Coupe GT2 RS 16 23 $228,325 $245,000
2-Door Cabriolet Carrera GTS 18 26 $101,430 $112,900
2-Door Coupe Carrera GTS 18 25 $92,610 $103,100
2-Door Speedster 19 26 $183,420 $204,000
2-Door Coupe GT3 RS 4.0 14 21 $166,320 $185,000
Pricing
Invoice Price
$95,418
$69,840
Manufacturer Suggested Retail Price
$102,600
$77,800
Monthly Payment Estimate
$1710 / month
$1297 / month
Dealer Price Quotes
The Car Connection's Take
TCC Rating
8.4
/ 10
TCC Rating
How does the
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or “Go” (green) messages along with the numerical score so you can easily understand where we stand at a glance.

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9.2
/ 10
TCC Rating
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Read Our Full Review
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
Fuel Economy - City 13 mpg 18 mpg
Fuel Economy - Highway 21 mpg 25 mpg
Vehicle
EPA Classification 2 Seater Mini-Compact
Interior Dimensions
Front Leg Room (in) 42.9 - TBD -
Passenger Capacity 2 4
Front Hip Room (in) 56.9 - TBD -
Front Head Room (in) 37.7 - TBD -
Front Shoulder Room (in) 54.0 - TBD -
Passenger Volume (ft³) 50.5 - TBD -
Second Leg Room (in) - - TBD -
Second Hip Room (in) - - TBD -
Second Head Room (in) - - TBD -
Second Shoulder Room (in) - - TBD -
Exterior Dimensions
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
Min Ground Clearance (in) - TBD - - TBD -
Length, Overall (in) 180.4 175.8
Height, Overall (in) 51.1 51.6
Cargo Area Dimensions
Trunk Volume (ft³) 10.2 (7.2 w/top down) 4.4
Brakes
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
Front Brake Rotor Diam x Thickness (in) 13.8 x 1.3 13.0 x 1.1
Drum - Rear (Yes or ) NA NA
Fuel Tank
Fuel Tank Capacity, Approx (gal) 21.1 16.9
Steering
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 -
Turning Diameter - Wall to Wall (ft) - TBD - N/A
Tires
Front Tire Size P255/40R18 P235/40ZR18
Spare Tire Size Compact NA
Front Tire Order Code NA NA
Spare Tire Order Code NA NA
Rear Tire Size P285/35R18 P265/40ZR18
Rear Tire Order Code NA NA
Trailering
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 -
Wt Distributing Hitch - Max Trailer Wt. (lbs) NA - TBD -
Weight Information
Base Curb Weight (lbs) 4220 3186
Wheels
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
Spare Wheel Material - TBD - NA
Front Wheel Size (in) 18 x 8.5 18 x 8.0
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
Displacement 5.5L/333 3.6L/219
SAE Net Horsepower @ RPM 382 @ 6000 345 @ 6500
Engine Type Gas V8 Gas Flat 6-cyl
Fuel System SFI Electronic Fuel Injection
SAE Net Torque @ RPM 391 @ 2800-4000 288 @ 4400
Engine Order Code NA NA
Mileage
EPA Fuel Economy Est - City (MPG) 13 18
Fuel Economy Est-Combined (MPG) 16 21
EPA Fuel Economy Est - Hwy (MPG) 21 25
Transmission
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
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 2 Door Convertible Coupe
Suspension
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
Stabilizer Bar Diameter - Rear (in) - TBD - - TBD -
Suspension Type - Front (Cont.) 4-Link w/Coil Springs
Shock Absorber Diameter - Front (mm) - TBD - - TBD -
Emissions
EPA Greenhouse Gas Score 3 -
Tons/yr of CO2 Emissions @ 15K mi/year 11.0 8.7
 
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