Compare 2012 BMW 6-Series vs 2012 Mercedes-Benz SL Class vs 2012 Porsche 911

2012 BMW 6-Series
X
2012 Mercedes-Benz SL Class
X
2012 Porsche 911
X
Select style
2-Door Conv 640i
Style MPG City MPG Hwy Invoice MSRP
6 Series 2-Door Conv 640i 21 31 $74,610 $81,100
6 Series 2-Door Conv 650i 15 23 $83,260 $90,500
6 Series 2-Door Conv 650i xDrive 15 23 $86,020 $93,500
6 Series 2-Door Coupe 640i 23 33 $67,710 $73,600
6 Series 2-Door Coupe 650i 15 23 $76,360 $83,000
6 Series 2-Door Coupe 650i xDrive 15 20 $79,120 $86,000
M6 2-Door Conv 14 20 $104,050 $113,100
Select style
2-Door Roadster SL 550
Style MPG City MPG Hwy Invoice MSRP
SL-Class 2-Door Roadster SL 550 14 22 $96,395 $103,650
SL-Class 2-Door Roadster SL 63 AMG 12 19 $130,609 $140,440
Select style
2-Door Convertible 991 Carrera
Style MPG City MPG Hwy Invoice MSRP
911 2-Door Convertible 991 Carrera 19 27 $84,150 $93,700
911 2-Door Convertible 991 Carrera S 19 27 $97,020 $108,000
911 2-Door Convertible 997 Carrera 18 26 $80,910 $90,100
911 2-Door Convertible 997 Carrera S 18 26 $92,520 $103,000
911 2-Door Convertible Carrera 4 18 25 $86,670 $96,500
911 2-Door Convertible Carrera 4 GTS 17 25 $107,910 $120,100
911 2-Door Convertible Carrera 4S 17 25 $98,280 $109,400
911 2-Door Convertible Carrera Black Edition 18 26 $81,990 $91,300
911 2-Door Convertible Carrera GTS 18 26 $101,430 $112,900
911 2-Door Convertible S Turbo 16 24 $154,710 $172,100
911 2-Door Convertible S Turbo 918 Spyder Edition 16 24 $176,580 $196,400
911 2-Door Convertible Turbo 16 24 $133,920 $149,000
911 2-Door Coupe 991 Carrera 19 27 $73,710 $82,100
911 2-Door Coupe 991 Carrera S 19 27 $86,580 $96,400
911 2-Door Coupe 997 Carrera 18 25 $70,920 $79,000
911 2-Door Coupe 997 Carrera S 18 25 $82,530 $91,900
911 2-Door Coupe Carrera 4 18 24 $76,680 $85,400
911 2-Door Coupe Carrera 4 GTS 18 25 $99,000 $110,200
911 2-Door Coupe Carrera 4S 18 25 $88,290 $98,300
911 2-Door Coupe Carrera Black Edition 18 25 $72,990 $81,300
911 2-Door Coupe Carrera GTS 18 25 $92,610 $103,100
911 2-Door Coupe S Turbo 17 25 $144,450 $160,700
911 2-Door Coupe S Turbo 918 Spyder Edition 17 25 $164,880 $183,400
911 2-Door Coupe Turbo 16 24 $123,570 $137,500
911 2-Door Targa 4 18 25 $83,970 $93,500
911 2-Door Targa 4S 17 25 $95,580 $106,400
Pricing
Invoice Price
$74,610
$96,395
$84,150
Manufacturer Suggested Retail Price
$81,100
$103,650
$93,700
Monthly Payment Estimate
$1352 / month
$1728 / month
$1562 / month
The Car Connection's Take
TCC Rating
8.6
8.4
9.0
TCC’s Bottom Line
Elegant, stylish, comfortable, and quick, the 2012 BMW 6-Series is one of the top choices for a grand-touring coupe or convertible--as long as your budget can handle it. 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
21 mpg 14 mpg 19 mpg
Highway
31 mpg 22 mpg 27 mpg
Vehicle
EPA Classification
Compact Cars 2 Seater Mini-Compact
Interior Dimensions
Second Shoulder Room (in)
49.6 - - TBD -
Front Leg Room (in)
42.1 42.9 - TBD -
Passenger Capacity
4 2 4
Front Hip Room (in)
- TBD - 56.9 - TBD -
Second Leg Room (in)
30.5 - - TBD -
Front Head Room (in)
40.3 37.7 - TBD -
Second Hip Room (in)
- TBD - - - TBD -
Front Shoulder Room (in)
56.9 54.0 - TBD -
Passenger Volume (ft³)
89.0 50.0 - TBD -
Second Head Room (in)
36.5 - - TBD -
Exterior Dimensions
Track Width, Rear (in)
65.0 60.5 - TBD -
Wheelbase (in)
112.4 100.8 96.5
Liftover Height (in)
- TBD - - TBD - - TBD -
Width, Max w/o mirrors (in)
74.6 71.7 71.2
Track Width, Front (in)
62.8 61.4 - TBD -
Min Ground Clearance (in)
- TBD - - TBD - 4.8
Length, Overall (in)
192.8 180.4 176.8
Height, Overall (in)
53.7 51.1 51.3
Cargo Area Dimensions
Trunk Volume (ft³)
10.6 - 12.4 10.2 (7.2 w/top down) 4.8
Brakes
Rear Brake Rotor Diam x Thickness (in)
13.6 x 0.9 11.8 x 0.4 13.00 x 1.10
Brake Type
Pwr Pwr Pwr
Rear Drum Diam x Width (in)
NA NA NA
Disc - Front (Yes or )
Yes Yes Yes
Front Brake Rotor Diam x Thickness (in)
13.7 x 1.2 13.0 x 1.1 13.00 x 1.10
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
18.5 21.1 16.9
Steering
Steering Type
Pwr Rack & Pinion Pwr Rack & Pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
- TBD - 2.6 2.55
Turning Diameter - Wall to Wall (ft)
- TBD - N/A - TBD -
Steering Ratio (:1), Overall
17.2 16.3 16.60-12.25
Turning Diameter - Curb to Curb (ft)
38.4 36.2 36.4
Tires
Front Tire Order Code
NA NA NA
Spare Tire Order Code
NA NA NA
Rear Tire Size
P245/45R18 P285/35R18 P285/35ZR19
Rear Tire Order Code
NA NA NA
Front Tire Size
P245/45R18 P255/40R18 P235/40ZR19
Spare Tire Size
NA NA Compact
Trailering
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA NA NA
Dead Weight Hitch - Max Trailer Wt. (lbs)
NA NA NA
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA NA NA
Dead Weight Hitch - Max Tongue Wt. (lbs)
NA NA NA
Weight Information
Base Curb Weight (lbs)
4255 4220 - TBD -
Wheels
Rear Wheel Size (in)
18 x 8 18 x 9.5 19 x 11
Front Wheel Material
Aluminum Aluminum Aluminum
Spare Wheel Material
NA NA - TBD -
Front Wheel Size (in)
18 x 8 18 x 8.5 19 x 8.5
Spare Wheel Size (in)
NA NA Compact
Rear Wheel Material
Aluminum Aluminum Aluminum
Cooling System
Total Cooling System Capacity (qts)
10.8 - TBD - - TBD -
Electrical
Maximum Alternator Capacity (amps)
210 180 NA
Cold Cranking Amps @ 0° F (Primary)
- TBD - 760 - TBD -
Engine
Engine Type
Turbocharged Gas I6 Gas V8 Gas Flat 6
Fuel System
Direct Injection Electronic Fuel Injection Direct Injection
SAE Net Torque @ RPM
332 @ 1400-4500 391 @ 2800-4000 287 @ 5600
Engine Order Code
NA NA NA
Displacement
3.0L/182 5.5L/333 3.4L/210
SAE Net Horsepower @ RPM
315 @ 5800-6000 382 @ 6000 350 @ 7400
Mileage
EPA Fuel Economy Est - City (MPG)
21 14 19
Fuel Economy Est-Combined (MPG)
25 17 22
EPA Fuel Economy Est - Hwy (MPG)
31 22 27
Transmission
Reverse Ratio (:1)
3.30 3.42 (R2 2.23) - TBD -
Eighth Gear Ratio (:1)
0.67 - -
Second Gear Ratio (:1)
3.14 2.86 - TBD -
Trans Order Code
2TB NA NA
Final Drive Axle Ratio (:1)
3.23 2.65 - TBD -
Fourth Gear Ratio (:1)
1.67 1.37 - TBD -
Trans Description Cont.
Automatic w/Manual Shift Automatic Manual
Sixth Gear Ratio (:1)
1.00 0.82 - TBD -
Seventh Gear Ratio (:1)
0.84 0.73 - TBD -
First Gear Ratio (:1)
4.71 4.38 - TBD -
Clutch Size (in)
NA NA - TBD -
Third Gear Ratio (:1)
2.11 1.92 - TBD -
Trans Type
8 7 7
Drivetrain
Rear Wheel Drive Rear Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1)
1.29 1.00 - TBD -
Trans Description Cont. Again
NA NA NA
Summary
Body Style
Convertible Convertible Convertible
Vehicle Name
BMW 6 Series Mercedes-Benz SL-Class Porsche 911
Suspension
Suspension Type - Rear (Cont.)
NA NA NA
Shock Absorber Diameter - Rear (mm)
NA N/A NA
Suspension Type - Front
Double Wishbone Independent MacPherson Strut
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD - - TBD -
Suspension Type - Front (Cont.)
NA NA NA
Shock Absorber Diameter - Front (mm)
NA N/A NA
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD - - TBD -
Suspension Type - Rear
Multi-link Multi-Link Multi-Link
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
7.3 11.0 8.3
EPA Greenhouse Gas Score
6 2 - TBD -

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