Compare 2012 Mercedes-Benz SL Class vs 2012 Porsche 911

2012 Mercedes-Benz SL Class
2012 Porsche 911
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2-Door Roadster SL 550
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster SL 550 14 22 $96,395 $103,650
2-Door Roadster SL 63 AMG 12 19 $130,609 $140,440
Select style
2-Door Coupe Carrera
Style MPG City MPG Hwy Invoice MSRP
2-Door Coupe Carrera 18 25 $70,920 $79,000
2-Door Coupe Carrera Black Edition 18 25 $72,990 $81,300
2-Door Coupe Carrera 4 18 24 $76,680 $85,400
2-Door Cabriolet Carrera 18 26 $80,910 $90,100
2-Door Cabriolet Carrera Black Edition 18 26 $81,990 $91,300
2-Door Coupe Carrera S 18 25 $82,530 $91,900
2-Door Targa 4 18 25 $83,970 $93,500
2-Door Cabriolet Carrera 4 18 25 $86,670 $96,500
2-Door Coupe Carrera 4S 18 25 $88,290 $98,300
2-Door Cabriolet Carrera S 18 26 $92,520 $103,000
2-Door Coupe Carrera GTS 18 25 $92,610 $103,100
2-Door Targa 4S 17 25 $95,580 $106,400
2-Door Cabriolet Carrera 4S 17 25 $98,280 $109,400
2-Door Coupe Carrera 4 GTS 18 25 $99,000 $110,200
2-Door Cabriolet Carrera GTS 18 26 $101,430 $112,900
2-Door Coupe GT3 14 21 $103,950 $115,700
2-Door Cabriolet Carrera 4 GTS 17 25 $107,910 $120,100
2-Door Coupe GT3 RS 14 21 $121,770 $135,500
2-Door Coupe Turbo 16 24 $123,570 $137,500
2-Door Cabriolet Turbo 16 24 $133,920 $149,000
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 S Turbo 918 Spyder Edition 17 25 $164,880 $183,400
2-Door Coupe GT3 RS 4.0 N/A N/A $166,320 $185,000
2-Door Cabriolet S Turbo 918 Spyder Edition 16 24 $176,580 $196,400
2-Door Coupe GT2 RS 16 23 $220,320 $245,000
Pricing
Invoice Price
$96,395
$70,920
Manufacturer Suggested Retail Price
$103,650
$79,000
Monthly Payment Estimate
$1728 / month
$1317 / month
The Car Connection's Take
TCC Rating
8.4
9.0
TCC’s Bottom Line
A powerful near-exotic luxury convertible, or a grand tourer with German precision? The 2012 Mercedes-Benz SL Class is both. The 2012 Porsche 911 is one of the best buys in the sports car market, and quite possibly the most practical, luxurious car at its performance level available.
TCC Likes
TCC Dislikes
Fuel Economy
City
14 mpg 18 mpg
Highway
22 mpg 25 mpg
Vehicle
EPA Classification
2 Seater Mini-Compact
Interior Dimensions
Front Shoulder Room (in)
54.0 51.5
Passenger Volume (ft³)
50.0 - TBD -
Front Leg Room (in)
42.9 - TBD -
Passenger Capacity
2 4
Front Hip Room (in)
56.9 - TBD -
Front Head Room (in)
37.7 38.4
Second Head Room (in)
- - TBD -
Second Shoulder Room (in)
- - TBD -
Second Leg Room (in)
- - TBD -
Second Hip 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)
71.7 72.9
Track Width, Front (in)
61.4 58.5
Min Ground Clearance (in)
- TBD - 4.6
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) 3.7
Brakes
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)
11.8 x 0.4 11.78 x 0.95
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)
13.0 x 1.1 12.52 x 1.10
Fuel Tank
Fuel Tank Capacity, Approx (gal)
21.1 16.9
Steering
Steering Ratio (:1), Overall
16.3 17.10-13.80
Turning Diameter - Curb to Curb (ft)
36.2 35.8
Steering Type
Pwr Rack & Pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
2.6 2.60
Turning Diameter - Wall to Wall (ft)
N/A - TBD -
Tires
Front Tire Size
P255/40R18 P235/40ZR18
Spare Tire Size
NA Compact
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)
NA NA
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA NA
Dead Weight Hitch - Max Trailer Wt. (lbs)
NA NA
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA NA
Weight Information
Base Curb Weight (lbs)
4220 - TBD -
Wheels
Spare Wheel Size (in)
NA Compact
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
18 x 9.5 18 x 11
Front Wheel Material
Aluminum Aluminum
Spare Wheel Material
NA - TBD -
Front Wheel Size (in)
18 x 8.5 18 x 8
Cooling System
Total Cooling System Capacity (qts)
- TBD - - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary)
760 - TBD -
Maximum Alternator Capacity (amps)
180 NA
Engine
Displacement
5.5L/333 3.6L/221
SAE Net Horsepower @ RPM
382 @ 6000 345 @ 6500
Engine Type
Gas V8 Gas Flat 6
Fuel System
Electronic Fuel Injection Direct Injection
SAE Net Torque @ RPM
391 @ 2800-4000 288 @ 4400
Engine Order Code
NA NA
Mileage
EPA Fuel Economy Est - Hwy (MPG)
22 25
EPA Fuel Economy Est - City (MPG)
14 18
Fuel Economy Est-Combined (MPG)
17 21
Transmission
Clutch Size (in)
NA - TBD -
Third Gear Ratio (:1)
1.92 - TBD -
Trans Type
7 6
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1)
1.00 - TBD -
Trans Description Cont. Again
NA NA
Reverse Ratio (:1)
3.42 (R2 2.23) - TBD -
Second Gear Ratio (:1)
2.86 - TBD -
Seventh Gear Ratio (:1)
0.73 - TBD -
Trans Order Code
NA NA
Final Drive Axle Ratio (:1)
2.65 - TBD -
Fourth Gear Ratio (:1)
1.37 - TBD -
Trans Description Cont.
Automatic Manual
Sixth Gear Ratio (:1)
0.82 - TBD -
First Gear Ratio (:1)
4.38 - TBD -
Summary
Vehicle Name
Mercedes-Benz SL-Class Porsche 911
Body Style
Convertible Coupe
Suspension
Shock Absorber Diameter - Front (mm)
N/A NA
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD -
Suspension Type - Rear
Multi-Link Multi-Link
Suspension Type - Rear (Cont.)
NA NA
Shock Absorber Diameter - Rear (mm)
N/A NA
Suspension Type - Front
Independent MacPherson Strut
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD -
Suspension Type - Front (Cont.)
NA NA
Emissions
EPA Greenhouse Gas Score
2 4
Tons/yr of CO2 Emissions @ 15K mi/year
11.0 8.7

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